Note: Descriptions are shown in the official language in which they were submitted.
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80450fft.207
Novel substituted piperidines, pharmaceutical compositions containing
these compounds, their use and processes for the preparation thereof
The present invention relates to new substituted piperidines of general
formula
R2
X t i H2)~
R N~Z~A N R3 (I),
N
R5 Ra
the tautomers, the diastereomers, the enantiomers, the mixtures thereof and
the salts thereof, particularly the physiologically acceptable salts thereof
with
inorganic or organic acids or bases, pharmaceutical compositions containing
these compounds, their use and processes for preparing them.
In the above general formula (I)
R denotes a saturated, monounsaturated or, in the case of the 6- and 7-
membered heterocyclic groups, a diunsaturated 5- to 7-membered aza, diaza,
triaza, oxaza, thiaza, thiadiaza or S,S-dioxido-thiadiaza-heterocyclic group,
while the abovementioned heterocyclic groups are linked via a carbon or
nitrogen atom and
contain one or two carbonyl groups, which are linked to at least one
nitrogen atom,
may be substituted by an alkyl group at one of the nitrogen atoms,
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may be substituted at one or two carbon atoms in each case by an alkyl,
phenyl, phenylmethyl, naphthyl, biphenylyl, pyridinyl, diazinyl, furyl,
thienyl, pyrrolyl, 1,3-oxazolyl, 1,3-thiazolyl, isoxazolyl, pyrazolyl, 1-
methyl-
pyrazolyl, imidazolyl or 1-methylimidazolyl group, while the substituents
may be identical or different,
and wherein a double bond of one of the abovementioned unsaturated
heterocyclic groups may be fused to a benzene, pyridine, diazine,
1,3-oxazole, thiophene, furan, thiazole, pyrrole, N-methyl-pyrrole or
quinoline ring, to a 2(11-oxoquinoline ring optionally substituted by an
alkyl group at the nitrogen atom or to an imidazole or N-methyl-imidazole
ring, or also two olefinic double bonds of one of the abovementioned
unsaturated heterocyclic groups may be fused to a benzene ring in each
case,
while the phenyl, pyridinyl, diazinyl, furyl, thienyl, pyrrolyl, 1,3-oxazolyl,
1,3-thiazolyl, isoxazolyl, pyrazolyl, 1-methylpyrazolyl, imidazolyl or 1-
methylimidazolyl groups contained in R as well as benzo-, thieno-,
pyrido- and diazino-fused heterocyclic groups in the carbon skeleton
may additionally be mono-, di- or trisubstituted by fluorine, chlorine,
bromine or iodine atoms, by alkyl, alkoxy, nitro, alkylthio, alkylsulphinyl,
alkylsulphonyl, alkylsulphonylamino, phenyl, trifluoromethyl,
difluoromethyl, difluoromethoxy, alkoxycarbonyl, carboxy, dialkylamino,
hydroxy, amino, acetylamino, propionylamino, aminocarbonyl,
alkylaminocarbonyl, dialkylaminocarbonyl, (4-morpholinyl)carbonyl,
(1-pyrrolidinyl)carbonyl, (1-piperidinyl)carbonyl, (hexahydro-
1-azepinyl)carbonyl, (4-methyl-1-piperazinyl)carbonyl, methylenedioxy,
aminocarbonylamino, alkanoyl, cyano, trifluoromethoxy,
trifluoromethylthio, trifluoromethylsulphinyl or trifluoromethylsulphonyl
groups, while the substituents may be identical or different,
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X denotes an oxygen atom or, if Z denotes the group -NR'-, it may also
denote one of the groups =N-CN or =N-S02-R6, wherein
R6 denotes an alkyl group with 1 to 4 carbon atoms or a phenyl group
optionally substituted by a halogen atom, a methyl or a methoxy group,
Z denotes one of the groups -CH2, wherein the hydrogen atoms may be
replaced independently of one another by a fluorine atom or a C~_3-alkyl
group,
or -NR', wherein
R' denotes the hydrogen atom, an alkyl group which may be substituted in
the alkyl moiety with the exception of position 1 by an amino, C~_3-alkyl-
amino or di-(C~_3-alkyl)-amino group, or a phenylalkyl group which may be
mono- or disubstituted in the phenyl moiety by fluorine, chlorine, bromine or
iodine atoms, by a C~_3-alkyl, trifluoromethyl, difluoromethyl, cyclopropyl,
hydroxy, Ci_3-alkoxy, difluoromethoxy, trifluoromethoxy, cyano, nitro,
amino, C~_3-alkyl-amino, di-(C~_3-alkyl)-amino, carboxy, C~_3-alkoxycarbonyl,
aminocarbonyl, C~_3-alkyl-aminocarbonyl, di-(C~_3-alkyl)-aminocarbonyl,
amino-C~_3-alkyl, C~_3-alkyl-amino-C1_3-alkyl or di-(C~_3-alkyl)-amino-C~_3-
alkyl group, while the substituents may be identical or different,
A denotes a carbon atom substituted by a hydrogen atom or by a C~_3-alkyl
group
n denotes the number 1 or 2,
R2 denotes the group
Rb
R°
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wherein
one of the groups Ra, Rb and R° denotes the hydrogen, fluorine,
chlorine,
bromine or iodine atom, a branched or unbranched alkyl group, a hydroxy,
alkoxy, trifluoromethyl, difluoromethyl, trifluoromethoxy, difluoromethoxy,
trifluoromethylthio, amino, acetylamino, dialkylaminoalkyl,
dialkylaminoalkoxy, nitro, methylsulphonyloxy, aminocarbonyl,
alkylaminocarbonyl, dialkylaminocarbonyl, alkanoyl, cyano,
trifluoromethylsulphinyl or trifluoromethylsulphonyl group,
a second of the groups Ra, Rb and R° denotes the hydrogen, fluorine,
chlorine, bromine or iodine atom, a branched or unbranched alkyl group, a
hydroxy, alkoxy, trifluoromethyl, difluoromethyl, trifluoromethoxy,
difluoromethoxy, trifluoromethylthio, amino, acetylamino, alkanoyl,
aminocarbonyl, alkylaminocarbonyl or dialkylaminocarbonyl group and
the third of the groups Ra, Rb and R° denotes the hydrogen, fluorine,
chlorine, bromine or iodine atom, a branched or unbranched alkyl group, a
hydroxy, alkoxy, trifluoromethyl, difluoromethyl, difluoromethoxy, or
trifluoromethoxy group, while the substituents may be identical or
different,
R3 and R4, which may be identical or different, in each case denote the
hydrogen atom, a C~_4-alkyl, amino-C~_3-alkyl, C1_3-alkyl-amino-C~_3-alkyl or
di-(C~_3-alkyl)-amino-C~_3-alkyl group,
a phenyl or naphthyl group which in each case may be mono- or disubstituted
by Rd, while the substituents may be identical or different and Rd denotes a
fluorine, chlorine, bromine or iodine atom, a C~_3-alkyl, trifluoromethyl,
difluoromethyl, cyclopropyl, hydroxy, C~_3-alkoxy, difluoromethoxy,
trifluoromethoxy, cyano, nitro, amino, C~.3-alkyl-amino, di-(C~_3-alkyl)-
amino,
carboxy, C~_3-alkoxy-carbonyl, aminocarbonyl, C~_3-alkyl-aminocarbonyl,
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di-(C~_3-alkyl)-aminocarbonyl, amino-C~_3-alkyl, C,_3-alkyl-amino-C~_3-alkyl
or
di-(C~_3-alkyl)-amino-C~_3-alkyl group or a 4- to 7-membered
cycfoalkyleneimino-carbonyl group wherein
one or two hydrogen atoms may each be replaced by a C~_3-alkyl
group and/or
in each case the methylene group in the 4 position of a 6- or 7-
membered cycloalkyleneimino moiety may be replaced by an oxygen
or sulphur atom, by a sulphinyl, sulphonyl, -NH, -N(C~_3-alkyl) or
-N(C~_3-alkyl-carbonyl)- group,
a monocyclic 5- or 6-membered heteroaryl group optionally substituted in the
carbon skeleton by a C~_3-alkyl, amino, C~_3-alkyl-amino, di-(C~_3-alkyl)-
amino,
carboxy, C~_3-alkoxy-carbonyl, aminocarbonyl, C~_3-alkyl-aminocarbonyl,
di-(C~_3-alkyl)-aminocarbonyl, amino-C~_3-alkyl, C~_3-alkyl-amino-C~_3-alkyl
or
di-(C~_3-alkyl)-amino-C~_3-alkyl group, while
the 6-membered heteroaryl group contains one, two or three nitrogen
atoms and may optionally additionally be substituted by a fluorine,
chlorine, bromine or iodine atom, a C~_3-alkyl, C~_3-alkoxy, amino, C~_3-
alkylamino or di-(C~_3-alkyl)amino group and
the 5-membered heteroaryl group contains an imino group optionally
substituted by a C~_3-alkyl, acetyl, trifluoroacetyl, C~_3-alkoxy-carbonyl,
aminocarbonyl, C~_3-alkyl-aminocarbonyl, di-(C~_3-alkyl)-aminocarbonyl,
amino-C~_3-alkyl, C~_3-alkyl-amino-C~_3-alkyl or di-(C~_3-alkyl)-amino-C~_3-
alkyl group, an oxygen or sulphur atom or
an imino group optionally substituted by a C~_3-alkyl, acetyl,
trifluoroacetyl, C~_3-alkoxy-carbonyl, aminocarbonyl, C~_3-alkyl-
aminocarbonyl, di-(C1_3-alkyl)-aminocarbonyl, amino-C~_3-alkyl, C,_3-alkyl-
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amino-C~_3-alkyl or di-(C~_3-alkyl)-amino-C~_3-alkyl group or an oxygen or
sulphur atom and additionally a nitrogen atom or
an imino group optionally substituted by a C~_3-alkyl, acetyl,
trifluoroacetyl, C~_3-alkoxy-carbonyl, aminocarbonyl, C,_3-alkyl-
aminocarbonyl, di-(C~_3-alkyl)-aminocarbonyl, amino-C~_3-alkyl, C~_3-alkyl-
amino-C~_3-alkyl or di-(Ci_3-alkyl)-amino-C~_3-alkyl group and two nitrogen
atoms,
or R3 and R4 together denote a 1,3-butadien-1,4-ylene group wherein
one, two or three methyne groups may each be replaced by a nitrogen
atom,
a hydrogen atom may be replaced by a fluorine, chlorine, bromine or
iodine atom, by a C~_3-alkyl, trifluoromethyl, difluoromethyl, cyclopropyl,
hydroxy, C~_3-alkoxy, difluoromethoxy, trifluoromethoxy, cyano, nitro,
amino, C~_3-alkyl-amino, di-(C~_3-alkyl)-amino, carboxy, C~_3-alkoxy-
carbonyl, aminocarbonyl, C~_3-alkyl-aminocarbonyl, di-(C~_3-alkyl)-
aminocarbonyl, di-(C~_3-alkyl)-amino-C2_3-alkyl-aminocarbonyl, amino-C~-3-
alkyl, C~_3-alkyl-amino-C~_3-alkyl or di-(C1_3-alkyl)-amino-C~_3-alkyl group
or
by a 4- to 7-membered cycloalkyleneimino-carbonyl group wherein
one or two hydrogen atoms may each be replaced by a C~_3-alkyl
group and/or
in each case the methylene group in the 4 position of a 6- or 7-
membered cycloalkyleneimino moiety may be replaced by an oxygen
or sulphur atom, by a sulphinyl, sulphonyl, -NH, -N(C~_3-alkyl) or
-N(C~_3-alkyl-carbonyl)- group,
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and optionally additionally a second hydrogen atom may be replaced by a
fluorine, chlorine, bromine or iodine atom, by a C~_3-alkyl, trifluoromethyl,
difluoromethyl, cyclopropyl, hydroxy, C~_3-alkoxy, difluoromethoxy or
trifluoromethoxy group, and
R5 denotes the group -(CH2)m-Re, wherein
m denotes the number 0 and
Re denotes a hydrogen atom,
a phenyl or naphthyl group which in each case may be mono- or
disubstituted by Rf, while the substituents may be identical or different and
Rf denotes a fluorine, chlorine, bromine or iodine atom, a C~_3-alkyl,
trifluoromethyl, difluoromethyl, cyclopropyl, hydroxy, C~_3-alkoxy,
difluoromethoxy, trifluoromethoxy, cyano, nitro, amino, C~_3-alkyl-amino,
di-(C~_3-alkyl)-amino, carboxy, C~_3-alkoxy-carbonyl, aminocarbonyl, C~_3-
alkyl-aminocarbonyl, di-(C~_3-alkyl)-aminocarbonyl, amino-C~_3-alkyl, C~_3-
alkyl-amino-C~_3-alkyl or di-(C~_3-alkyl)-amino-C~_3-alkyl group, or
a pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, pyrrolyl, furyl, thienyl,
pyrazolyl, imidazolyl, oxazolyl, isoxazolyl, thiazolyl or isothiazolyl group
optionally substituted in the carbon skeleton by a C~_3-alkyl group, wherein
a hydrogen atom bound to a nitrogen atom may be replaced by a
C~_3-alkyl or acetyl group, or
a C3_~-cycloalkyl group, while
a hydrogen atom of the C3_~-cycloalkyl group may be replaced by an
amino, C~_3-alkyl-amino, di-(C~_3-alkyl)-amino, amino-C~_3-alkyl, C~_3-
alkyl-amino-C~_3-alkyl or di-(C~_3-alkyl)-amino-C,_3-alkyl group and/or
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the methylene group in the 3 position of the cyclopentyl group and the
methylene group in the 4 position of the cyclohexyl and cycloheptyl
group may each be replaced by an oxygen or sulphur atom, by a
sulphinyl, sulphonyl, -NH, -N(C~_3-alkyl) or -N(C~_3-alkyl-carbonyl)-
group,
or m denotes one of the numbers 1 to 5 and
Re denotes a hydrogen atom, an aminomethylene,
C~_3-alkylaminomethylene, di-(C~_3-alkyl)-aminomethylene, aminocarbonyl,
C~_3-alkylaminocarbonyl, di-(C~_3-alkyl)-aminocarbonyl or C3_7-cycloalkyl
group, while
a hydrogen atom of the C3_7-cycloalkyl group may be replaced by an
amino, C~_3-alkyl-amino, di-(C~_3-alkyl)-amino, amino-C~_3-alkyl, C~_3-
alkyl-amino-C~_3-alkyl or di-(C~_3-alkyl)-amino-C~_3-alkyl group and/or
the methylene group in the 3 position of the cyclopentyl group and the
methylene group in the 4 position of the cyclohexyl and cycloheptyl
group may each be replaced by an oxygen or sulphur atom, by a
sulphinyl, sulphonyl, -NH, -N(C~_3-alkyl) or -N(C~_3-alkyl-carbonyl)-
group,
a 4- to 7-membered cycloalkyleneimino group wherein
one or two hydrogen atoms may each be replaced by a C~_3-alkyl
group and/or
in each case the methylene group in the 4 position of a 6- or 7-
membered cycloalkyleneimino group may be replaced by an oxygen
or sulphur atom, by a sulphinyl, sulphonyl, -NH, -N(C~_3-alkyl) or
-N(C~_3-alkyl-carbonyl)- group,
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a phenyl or naphthyl group which may be mono- or disubstituted by R9 in
each case independently of one another, while the substituents may be
identical or different and R9 denotes a fluorine, chlorine, bromine or iodine
atom, a C~_3-alkyl, trifluoromethyl, difluoromethyl, cyclopropyl, hydroxy,
C~_3-alkoxy, difluoromethoxy, trifluoromethoxy, cyano, nitro, amino, C~_3-
alkyl-amino, di-(C~_3-alkyl)-amino, carboxy, C~_3-alkoxy-carbonyl,
aminocarbonyl, C~_3-alkyl-aminocarbonyl, di-(C~_3-alkyl)-aminocarbonyl,
amino-C~_3-alkyl, C~_3-alkyl-amino-C~_3-alkyl or di-(C~_3-alkyl)-amino-C~_3-
alkyl group,
or a monocyclic 5- or 6-membered heteroaryl group optionally substituted
in the carbon skeleton by a C~_3-alkyl, amino, C~_3-alkyl-amino, dl-(C~_3-
alkyl)-amino, carboxy, C~_3-alkoxy-carbonyl, aminocarbonyl, C~_3-alkyl-
aminocarbonyl, di-(C~_3-alkyl)-aminocarbonyl, amino-C~_3-alkyl, C~_3-alkyl-
amino-C~_3-alkyl or di-(C~_3-alkyl)-amino-C~_3-alkyl group, while
the 6-membered heteroaryl group contains one, two or three nitrogen
atoms and may optionally additionally be substituted by a fluorine,
chlorine, bromine or iodine atom, a C~_3-alkyl, C~_3-alkoxy, amino, C~_3-
alkylamino or di-(C~_3-alkyl)amino group and
the 5-membered heteroaryl group contains an imino group optionally
substituted by a C~_3-alkyl, acetyl, trifluoroacetyl, C~_3-alkoxy-carbonyl,
aminocarbonyl, C~_3-alkyl-aminocarbonyl, di-(C~_3-alkyl)-
aminocarbonyl, amino-C~_3-alkyl, C~_3-alkyl-amino-C~_3-alkyl or dl-(C~_3-
alkyl)-amino-C~_3-alkyl group, an oxygen or sulphur atom or
an imino group optionally substituted by a C~_3-alkyl, acetyl,
trifluoroacetyl, C~_3-alkoxy-carbonyl, aminocarbonyl, C~_3-alkyl-
aminocarbonyl, di-(C~_3-alkyl)-aminocarbonyl, amino-C~_3-alkyl, C~_3-
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alkyl-amino-C~_3-alkyl or di-(C~_3-alkyl)-amino-C~_3-alkyl group or an
oxygen or sulphur atom and additionally a nitrogen atom or
an imino group optionally substituted by a C~_3-alkyl, acetyl,
trifluoroacetyl, C~_3-alkoxy-carbonyl, aminocarbonyl, C~_3-alkyl-
aminocarbonyl, di-(C~_3-alkyl)-aminocarbonyl, amino-C~_3-alkyl, C~_3-
alkyl-amino-C~_3-alkyl or di-(C~_3-alkyl)-amino-C~_3-alkyl group and two
nitrogen atoms,
while the abovementioned alkyl groups or the alkyl groups contained in the
abovementioned groups, unless otherwise stated, contain 1 to 5 carbon
atoms and may be branched or unbranched.
For example R may represent the 4-(2-oxo-4-phenyl-2,3-dihydro-imidazol-1-
yl), 4-(2-oxo-2,3-dihydro-benzimidazol-1-yl), 4-(2,4-dioxo-1,4-dihydro-2H-
quinazolin-3-yl), 4-(2-oxo-1,2-dihydro-imidazo[4,5-b]pyridin-3-y1), 4-(2-oxo-
1,4-
dihydro-2H-quinazolin-3-yl), 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-
yl), 4-(7-methoxy-2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl), 4-(2-oxo-
1,2-dihydro-quinolin-3-yl), 4-(5-oxo-3-phenyl-4,5-dihydro-1,2,4-triazol-1-yl),
4-
(2-oxo-1,2-dihydro-imidazo[4,5-c]quinolin-3-yl) group.
The present invention relates to racemates if the compounds of general
formula I have only one chiral element. However, the application also
includes the individual diastereomeric pairs of antipodes or mixtures thereof
which are obtained if there is more than one chiral element in the compounds
of general formula (I), as well as the individual optically active enantiomers
of
which the abovementioned racemates are made up.
The compounds of general formula (I) have valuable pharmacological
properties, based on their selective CGRP-antagonistic properties. The
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invention further relates to pharmaceutical compositions containing these
compounds, their use and the preparation thereof.
One subgroup of compounds of general formula I deserving special mention
comprises those wherein R, X, Z, A, n, R2, and R5 are as hereinbefore defined
and
R3 denotes the hydrogen atom or a C~_4-alkyl group and
R4 denotes the hydrogen atom, a C~_4-alkyl, amino-C~_3-alkyl, C~_3-alkyl-amino-
C~_3-alkyl or di-(C~_3-alkyl)-amino-C~_3-alkyl group,
a phenyl or naphthyl group which may be mono- or disubstituted by Rd in
each case independently of one another, while the substituents may be
identical or different and Rd denotes a fluorine, chlorine, bromine or iodine
atom, a C~_3-alkyl, trifluoromethyl, difluoromethyl, cyclopropyl, hydroxy,
C~_3-alkoxy, difluoromethoxy, trifluoromethoxy, cyano, nitro, amino, C~_3-
alkyl-
amino, di-(C~_3-alkyl)-amino, carboxy, C~_3-alkoxy-carbonyl, aminocarbonyl,
C~_3-alkyl-aminocarbonyl, di-(C~_3-alkyl)-aminocarbonyl, amino-C~_3-alkyl,
C~_3'
alkyl-amino-C~_3-alkyl or di-(C~_3-alkyl)-amino-C~_3-alkyl group, or
a monocyclic 5- or 6-membered heteroaryl group optionally substituted in the
carbon skeleton by a C~_3-alkyl, amino, C~_3-alkyl-amino, di-(C~_3-alkyl)-
amino,
carboxy, C~_3-alkoxy-carbonyl, aminocarbonyl, C~_3-alkyl-aminocarbonyl,
di-(C~_3-alkyl)-aminocarbonyl, amino-C~_3-alkyl, C~_3-alkyl-amino-C~_3-alkyl
or
di-(C~_3-alkyl)-amino-C~_3-alkyl group, while
the 6-membered heteroaryl group contains one, two or three nitrogen
atoms and
the 5-membered heteroaryl group contains an imino group optionally
substituted by a C~_3-alkyl, acetyl, trifluoroacetyl, C~_3-alkoxy-carbonyl,
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aminocarbonyl, C~_3-alkyl-aminocarbonyl, di-(C~_3-alkyl)-aminocarbonyl,
amino-C~_3-alkyl, C~_3-alkyl-amino-C~_3-alkyl or di-(C~_3-alkyl)-amino-C~_3-
alkyl group, an oxygen or sulphur atom or
an imino group optionally substituted by a C~_3-alkyl, acetyl,
trifluoroacetyl- C~_3-alkoxy-carbonyl, aminocarbonyl, C~_3-alkyl-
aminocarbonyl, di-(C~_3-alkyl)-aminocarbonyl, amino-C~_3-alkyl, C1_3-alkyl-
amino-C~_3-alkyl or di-(C~_3-alkyl)-amino-C~_3-alkyl group or an oxygen or
sulphur atom and additionally a nitrogen atom or
an imino group optionally substituted by a C~_3-alkyl, acetyl,
trifluoroacetyl- C~_3-alkoxy-carbonyl, aminocarbonyl, C~_3-alkyl-
aminocarbonyl, di-(C1_3-alkyl)-aminocarbonyl, amino-C~_3-alkyl, C~_3-alkyl-
amino-C~_3-alkyl or di-(C~_3-alkyl)-amino-C~_3-alkyl group and two nitrogen
atoms,
the tautomers, diastereomers, enantiomers, mixtures and salts thereof.
A second subgroup of compounds of general formula I deserving particular
mention comprises those wherein R, X, Z, A, n, R2, and R5 are as hereinbefore
defined and
R3 and R4 together denote a 1,3-butadien-1,4-ylene group wherein
one, two or three methyne groups may each be replaced by a nitrogen
atom,
a hydrogen atom may be replaced by a fluorine, chlorine, bromine or
iodine atom, by a C~_3-alkyl, trifluoromethyl, difluoromethyl, cyclopropyl,
hydroxy, C~_3-alkoxy, difluoromethoxy, trifluoromethoxy, cyano, nitro,
amino, C~_3-alkyl-amino, di-(C~_3-alkyl)-amino, carboxy, C~_3-alkoxy-
carbonyl, aminocarbonyl, C~_3-alkyl-aminocarbonyl, di-(C~_3-alkyl)-
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aminocarbonyl, di(C~_3-alkyl)-amino-CZ_3-alkyl-aminocarbonyl, amino-C,_3-
alkyl, C,_3-alkyl-amino-C~_3-alkyl or di-(C~_3-alkyl)-amino-C~_s-alkyl group
or
by a 4- to 7-membered cycloalkyleneimino-carbonyl group wherein
one or two hydrogen atoms may each be replaced by a C~_3-alkyl
group and/or
in each case the methylene group in the 4 position of a 6- or 7-
membered cycloalkyleneimino moiety may be replaced by an oxygen
or sulphur atom, by a sulphinyl, sulphonyl, -NH, -N(C~_3-alkyl)
or-N(C~_3-alkyl-carbonyl)- group,
and optionally a second hydrogen atom may additionally be replaced by a
fluorine, chlorine, bromine or iodine atom, by a C~_3-alkyl, trifluoromethyl,
difluoromethyl, cyclopropyl, hydroxy, C~_3-alkoxy, diffuoromethoxy or
trifluoromethoxy group.
Preferred compounds of the above general formula l are those wherein
R denotes a saturated or monounsaturated 5- to 7-membered aza, diaza,
oxaza or thiaza heterocyclic group,
while the abovementioned heterocyclic groups are linked via a nitrogen
atom and
contain a carbonyl group linked to one or two nitrogen atoms of the
heterocyclic group,
may be substituted by an alkyl group at one of the nitrogen atoms,
may be substituted at one of the carbon atoms by an alkyl, phenyl,
pyridinyl, furyl, thienyl or pyrrolyl group,
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and wherein a double bond of one of the abovementioned unsaturated
heterocyclic groups may be fused to a benzene, pyridine or thiophene
ring,
while the phenyl, pyridinyl, furyl, thienyl, pyrrolyl groups contained in R
as well as the benzo-, thieno- and pyrido-condensed heterocyclic
groups in the carbon skeleton may additionally be mono- or
disubstituted by fluorine, chlorine, bromine or iodine atoms, by alkyl,
alkoxy, nitro, alkylthio, trifluoromethyl, difluoromethyl, alkoxycarbonyl,
carboxy, dialkylamino, hydroxy, amino, acetylamino, aminocarbonyl,
afkylaminocarbonyl, alkanoyl, cyano or trifluoromethoxy groups, while
the substituents may be identical or different,
X denotes an oxygen atom or, if Z the group -NR'- denotes, it may also
denote the group =N-CN,
Z denotes one of the groups -CH2 or -NR', wherein
R' denotes the hydrogen atom or an alkyl group,
A denotes a carbon atom substituted by a hydrogen atom or by a C,_3-alkyl
group,
n denotes the number 1 or 2,
R2 denotes the group
Rb
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wherein
one of the groups Ra, Rb and R° denotes the hydrogen, fluorine,
chlorine,
bromine or iodine atom, a branched or unbranched alkyl group, a hydroxy,
alkoxy, trifluoromethyl, difluoromethyl, trifluoromethoxy, amino,
acetylamino, dialkylaminoalkyl, dialkylaminoalkoxy, aminocarbonyl,
alkylaminocarbonyl, dialkylaminocarbonyl, alkanoyl, cyano or
trifluoromethylsulphonyl group,
a second of the groups Ra, Rb and R° denotes the hydrogen, fluorine,
chlorine, bromine or iodine atom, a branched or unbranched alkyl group,
an alkoxy, trifluoromethyl, amino, acetylamino or alkanoyl group and
the third of the groups Ra, Rb and R~ denotes the hydrogen, fluorine,
chlorine, bromine or iodine atom or a branched or unbranched alkyl
group, while the substituents may be identical or different,
R3 denotes the hydrogen atom or a C~_3-alkyl group,
R4 denotes the hydrogen atom, a C~~-alkyl, amino-C~_3-alkyl, C~_3-alkyl-amino-
C~_3-alkyl or di-(C~_3-alkyl)-amino-C~_3-alkyl group,
a phenyl group which may be mono- or disubstituted by Rd, while the
substituents may be identical or different and Rd denotes a fluorine,
chlorine,
bromine or iodine atom, a C~_3-alkyl, trifluoromethyl, difluoromethyl,
cyclopropyl, hydroxy, C~_3-alkoxy, difluoromethoxy, trifluoromethoxy, amino,
C~_3-alkylamino, di-(C~_3-alkyl)-amino, carboxy, C~_3-alkoxy-carbonyl,
aminocarbonyl, C~_3-alkyl-aminocarbonyl, di-(C~_3-alkyl)-aminocarbonyl,
amino-C~_3-alkyl, C~_3-alkyl-amino-C~_3-alkyl or di-(C~_3-alkyl)-amino-C~_3-
alkyl
group, or
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a pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, pyrrolyl, furyl, thienyl,
pyrazolyl,
imidazolyl, oxazolyl, isoxazolyl, thiazolyl or isothiazolyl group optionally
substituted in the carbon skeleton by a C~_3-alkyl group, wherein a hydrogen
atom bound to a nitrogen atom may be replaced by a C~_3-alkyl or acetyl
group,
or R3 and R4 together denote a 1,3-butadien-1,4-ylene group wherein
a hydrogen atom may be replaced by a fluorine, chlorine, bromine or
iodine atom, by a C~_3-alkyl, trifluoromethyl, difluoromethyl, cyclopropyl,
hydroxy, C~_3-alkoxy, amino, C~_3-alkyl-amino, di-(C~_3-alkyl)-amino,
carboxy, C~_3-alkoxy-carbonyl, aminocarbonyl, C~_3-alkyl-aminocarbonyl,
di-(C~_3-alkyl)-aminocarbonyl, di-(C~_3-alkyl)-amino-C2_3-alkyl-
aminocarbonyl, amino-C~_3-alkyl, C~_3-alkyl-amino-C~_3-alkyl, di-(C~_3-alkyl)-
amino-C~_3-alkyl group or by a 5- to 7-membered
cycloalkyleneimino-carbonyl group wherein
one or two hydrogen atoms may each be replaced by a C~_3-alkyl
group and/or
in each case the methylene group in the 4 position of a 6- or 7-
membered cycloalkyleneimino moiety by an oxygen or sulphur atom,
may be replaced by a -NH, -N(C~_3-alkyl) or-N(C~_3-alkyl-carbonyl)-
group,
and optionally a second hydrogen atom may additionally be replaced by a
fluorine, chlorine, bromine or iodine atom, by a C~_3-alkyl or trifluoromethyl
group, and
R5 denotes the group -(CH2)m-Re, wherein
m denotes the number 0 and
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Re denotes a hydrogen atom or a C5_6-cycloalkyl group, while
the methylene group in the 3 position of the cyclopentyl group and the
methylene group in the 4 position of the cyclohexyl group may each
be replaced by a -NH, -N(C~_3-alkyl) or -N(C~_3-alkyl-carbonyl) group,
or m denotes one of the numbers 1 to 5 and
Re denotes a hydrogen atom, an aminomethylene,
C~_3-aikylaminomethylene, di-(C~_3-alkyl)-aminomethylene, aminocarbonyl,
C~_3-alkyl-aminocarbonyl, di-(C~_3-alkyl)-amino carbonyl or C5_6-cycloalkyl
group, while
the methylene group in the 3 position of the cyclopentyl group and the
methylene group in the 4 position of the cyclohexyl group may each
be replaced by a -NH, -N(C~_3-alkyl) or -N(C~_3-alkyl-carbonyl) group,
a 5- to 6-membered cycloalkyleneimino group, while
the methylene group in the 4 position of a 6-membered
cycloalkyleneimino group may be replaced by a -NH, -N(C~_3-alkyl) or
-N(C~_3-alkyl-carbonyl)- group,
a phenyl group which may be mono- or disubstituted by R9, while the
substituents may be identical or different and R9 denotes a fluorine,
chlorine, bromine or iodine atom, a C~_3-alkyl, trifluoromethyl,
difluoromethyl, hydroxy, C~_3-alkoxy, amino, C~_3-alkyl-amino, dl-(C~_3-
alkyl)-amino, aminocarbonyl- C~_3-alkyl-aminocarbonyl, amino-C~_3-alkyl,
C~_3-alkyl-amino-C~_3-alkyl or di-(C~_3-alkyl)-amino-C~_3-alkyl group,
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or a pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, pyrrolyl, furyl, thienyl,
pyrazolyl, imidazolyl, oxazolyl, isoxazolyl, thiazolyl or isothiazolyl group
optionally substituted in the carbon skeleton by a C~_3-alkyl group, wherein
a hydrogen atom bound to a nitrogen atom by a C~_3-alkyl or acetyl group
may be replaced,
while the abovementioned alkyl groups or the alkyl groups contained in the
abovementioned groups, unless otherwise stated, contain 1 to 4 carbon
atoms and may be branched or unbranched,
the tautomers, the diastereomers, the enantiomers and the salts thereof.
One subgroup of preferred compounds of general formula I deserving special
mention comprises those wherein R, X, Z, A, n, R2, and R5 are as hereinbefore
defined and
R3 denotes the hydrogen atom or a C~_3-alkyl group and
R4 denotes a phenyl group which may be mono- or disubstituted by Rd, while
the substituents may be identical or different and Rd denotes a fluorine,
chlorine, bromine or iodine atom, a C~_3-alkyl, trifluoromethyl,
difluoromethyl,
cyclopropyl, hydroxy, C~_3-alkoxy, difluoromethoxy, trifluoromethoxy, amino,
C~_3-alkyl-amino, di-(C~_3-alkyl)-amino, carboxy, C~_3-alkoxy-carbonyl,
aminocarbonyl, C~_3-alkyl-aminocarbonyl, di-(C~_3-alkyl)-aminocarbonyl,
amino-C~_3-alkyl, C~_3-alkyl-amino-C~_3-alkyl or di-(C~_3-alkyl)-amino-C~_3-
alkyl
group, or
a pyridinyl, pyrazinyl, pyrimidinyl, pyridazinyl, pyrrolyl, furyl, thienyl,
pyrazolyl,
imidazolyl, oxazolyl, isoxazolyl, thiazolyl or isothiazolyl group optionally
substituted in the carbon skeleton by a C~_3-alkyl group, wherein a hydrogen
atom bound to a nitrogen atom may be replaced by a C~_3-alkyl or acetyl
group.
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A second subgroup of preferred compounds of general formula I deserving
special mention comprises those wherein R, X, Z, A, n, R2, and R5 are as
hereinbefore defined and
R3 and Ra together denote a 1,3-butadien-1,4-ylene group wherein
a hydrogen atom may be replaced by a fluorine, chlorine, bromine or
iodine atom, by a C~_3-alkyl, trifluoromethyl, difluoromethyl, cyclopropyl,
hydroxy, C~_3-alkoxy, amino, C~_3-alkyl-amino, di-(C~_3-alkyl)-amino,
carboxy, C~_3-alkoxy-carbonyl, aminocarbonyl, C~_3-alkyl-aminocarbonyl,
di-(C1_3-alkyl)-aminocarbonyl or di-(C~_3-alkyl)-amino-CZ_3-alkyl-
aminocarbonyl group or by a 5- to 7-membered
cycloalkyleneimino-carbonyl group wherein
one or two hydrogen atoms may each be replaced by a C~_3-alkyl
group and/or
in each case the methylene group in the 4 position of a 6- or 7-
membered cycloalkyleneimino moiety may be replaced by an oxygen
or sulphur atom, by a -NH, -N(C~_3-alkyl) or-N(C~_3-alkyl-carbonyl)-
group,
and optionally a second hydrogen atom may additionally be replaced by a
fluorine, chlorine, bromine or iodine atom, by a C~_3-alkyl or triffuoromethyl
group.
Particularly preferred compounds of the above general formula I are those
wherein
R denotes a monounsaturated, 5- to 7-membered diaza heterocyclic group
linked via a nitrogen atom,
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while the abovementioned heterocyclic groups contain a carbonyl group
linked to both nitrogen atoms of the heterocyclic group,
may each be substituted independently of one another at one of the
nitrogen atoms and one of the saturated carbon atoms by a C~_3-alkyl
group,
and wherein the double bond of the abovementioned unsaturated
heterocyclic groups is fused to a benzene ring optionally substituted by a
fluorine, chlorine, bromine or iodine atom, or by a C~_3-alkyl, C~_3-alkoxy,
trifluoromethyl, carboxy, C~_3-alkoxy-carbonyl, amino, acetylamino,
hydroxy, aminocarbonyl or alkanoyl group,
X denotes an oxygen atom,
Z denotes one of the groups -CH2 or -NR' wherein
R' denotes the hydrogen atom or a C~_3-alkyl group,
A denotes a carbon atom substituted by a hydrogen atom or by a C~_3-alkyl
group,
n denotes the number 1,
R2 denotes the group
Rb
R~
wherein
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one of the groups Ra, Rb and R° denotes the hydrogen, fluorine,
chlorine,
bromine or iodine atom, a C~_3-alkyl, trifluoromethyl, hydroxy, alkoxy or
amino group,
a second of the groups Ra, Rb and R° denotes the hydrogen, fluorine,
chlorine, bromine or iodine atom, a C~_3-alkyl or trifluoromethyl group and
the third of the groups Ra, Rb and R' denotes the hydrogen, fluorine,
chlorine, bromine or iodine atom, while the substituents may be identical
or different,
R3 denotes the hydrogen atom or a C~_3-alkyl group,
R4 denotes a phenyl group optionally substituted by a fluorine, chlorine,
bromine or iodine atom, by a C~_3-alkyl, trifluoromethyl, hydroxy, C~_3-
alkoxy,
amino, C~_3-alkylamino, di-(C~_3-alkyl)-amino, carboxy or C~_3-alkoxy-carbonyl
group,
or R3 and R4 together denote a 1,3-butadien-1,4-ylene group wherein
a hydrogen atom may be replaced by a fluorine, chlorine, bromine or
iodine atom, by a C~_3-alkyl, trifluoromethyl, hydroxy, C~_3-alkoxy, carboxy,
C~_3-alkoxy-carbonyl, aminocarbonyl, C~_3-alkyl-aminocarbonyl, di-(C~_3-
alkyl)-aminocarbonyl or di-(C~_3-alkyl)-amino-C2_3-alkyl-aminocarbonyl
group or by a 5- to 7-membered cycloalkyleneimino-carbonyl group, while
the methylene group in the 4 position of the 6-membered
cycloalkyleneimino moiety may be replaced by a -NH, -N(C~_3-alkyl) or
-N(C~_3-alkyl-carbonyl)- group,
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and optionally a second hydrogen atom may additionally be replaced by a
fluorine, chlorine, bromine or iodine atom or by a C~_3-alkyl group, and
R5 denotes the group -(CH2)m-Re, wherein
m denotes the number 0 and
Re denotes a hydrogen atom,
or m denotes one of the numbers 1 to 3 and
Re denotes a hydrogen atom, an aminomethylene,
C~_3-alkylaminomethylene or di-(C~_3-alkyl)-aminomethylene group,
while the abovementioned alkyl groups or the alkyl groups contained in the
abovementioned groups, unless otherwise stated, may be branched or
unbranched,
the tautomers, the diastereomers, the enantiomers and the salts thereof.
A subgroup of particularly preferred compounds of general formula I deserving
special mention comprises those wherein R, X, Z, A, n, R2, and R5 are as
hereinbefore defined and
R3 denotes the hydrogen atom or a C~_3-alkyl group and
R4 denotes a phenyl group optionally substituted by a fluorine, chlorine,
bromine or iodine atom, by a C~_3-alkyl, trifluoromethyl, hydroxy, C~_3-
alkoxy,
amino, C~_3-alkylamino, di-(C~_3-alkyl)-amino, carboxy or C~_3-alkoxy-carbonyl
group.
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A second subgroup of particularly preferred compounds of general formula I
deserving special mention comprises those wherein R, X, Z, A, n, Rz, and R5
are
as hereinbefore defined and
R3 and R4 together denote a 1,3-butadien-1,4-ylene group wherein
a hydrogen atom may be replaced by a fluorine, chlorine, bromine or
iodine atom, by a C~_3-alkyl, trifluoromethyl, hydroxy, C~_3-alkoxy, carboxy,
C~_3-alkoxy-carbonyl, aminocarbonyl, C~_3-alkyl-aminocarbonyl, dl-(C1-3-
alkyl)-aminocarbonyl or di-(C~_3-alkyl)-amino-C2_3-alkyl-aminocarbonyl
group or by a 5- to 7-membered cycloalkyleneimino-carbonyl group, while
the methylene group in the 4 position of the 6-membered
cycloalkyleneimino moiety may be replaced by a -NH, -N(C~_3-alkyl)
or-N(C~_3-alkyl-carbonyl) group,
and optionally a second hydrogen atom may additionally be replaced by a
fluorine, chlorine, bromine or iodine atom or by a C~_3-alkyl group.
The following are mentioned as examples of particularly preferred
compounds:
(1) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[1-(3-
dimethylamino-propyl)-1 H-benzimidazal-2-yl]-ethyl}-amide,
(2) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[1-(2-
dimethylamino-ethyl)-1 H-benzimidazol-2-yl]-ethyl}-amide,
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(3) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-[(R)-2-(4-amino-3,5-dibromo-phenyl)-1-(1-methyl-1H-
benzimidazol-2-yl)-ethyl]-amide,
(4) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-[(R)-2-(4-amino-3,5-dibromo-phenyl)-1-(1H-
benzimidazol-2-yl)-ethyl]-amide,
(5) methyl2-((R)-2-(4-amino-3,5-dibromo-phenyl)-1-{[4-(2-oxo-1,4-dihydro-
3H-quinazolin-3-yl)-piperidin-1-carbonyl]-amino}-ethyl)-1 H-
benzimidazolee-5-carboxylate,
(6) methyl2-((R)-2-(4-amino-3,5-dibromo-phenyl)-1-{[4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-ethyl)-
1 H-benzimidazolee-5-carboxylate,
(7) 2-((R)-2-(4-amino-3,5-dibromo-phenyl)-1-{[4-(2-oxo-1,2,4,5-tetrahydro-
1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-ethyl)-1H-
benzimidazole-5-carboxylic acid,
(8) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[6-(4-methyl-
piperazin-1-carbonyl)-1 H-benzimidazol-2-yl]-ethyl}-amide,
(9) 2-((R)-2-(4-amino-3,5-dibromo-phenyl)-1-{[4-(2-oxo-1,2,4,5-tetrahydro-
1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-ethyl)-1H-
benzimidazole-5-carboxylic acid-(3-dimethylamino-propyl)-amide,
(10) 2-((R)-2-(4-amino-3,5-dibromo-phenyl)-1-{[4-(2-oxo-1,2,4,5-tetrahydro
1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-ethyl)-1H
benzimidazole-5-carboxylic acid-(2-dimethylamino-ethyl)-amide,
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(11) 4-(2-oxo-1,4-dihydro-2H-quinazolin-3-yl)-piperidin-1-carboxylic acid-{(R)-
2-(4-amino-3,5-dibromo-phenyl)-1-[1-(3-dimethylamino-propyl)-5-phenyl-
1 H-imidazol-2-yl]-ethyl}-amide,
(12) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-[(R)-2-(4-amino-3,5-dibromo-phenyl)-1-(1-butyl-1H-
benzimidazol-2-yl)-ethyl]-amide,
(13) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[1-(3-pyrrolidin-1-
yl-propyl)-1 H-benzimidazol-2-yl]-ethyl}-amide,
(14) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-[(R)-2-(4-amino-3,5-dibromo-phenyl)-1-(1-pyridin-3-
yfmethyl-1 H-benzimidazol-2-yl)-ethyl]-amide,
(15) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-[(R)-2-(4-amino-3,5-dibromo-phenyl)-1-(1-benzyl-1H-
benzimidazol-2-yl)-ethyl]-amide,
(16) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid {(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[1-(1-methyl-
piperidin-4-ylmethyl)-1 H-benzimidazol-2-yl]-ethyl}-amide,
(17) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-(1-(4-
dimethylamino-butyl)-1 H-benzimidazol-2-yl]-ethyl}-amide,
(18) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[1-(1-methyl-
piperidin-4-yl)-1 H-benzimidazol-2-yl]-ethyl}-amide,
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(19) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-[(R)-2-(4-amino-3,5-dibromo-phenyl)-1-(1-cyclohexyl-
1 H-benzimidazol-2-yl)-ethyl]-amide,
(20) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-[(R)-2-(4-amino-3,5-dibromo-phenyl)-1-(1-cyclopentyl-
1 H-benzimidazol-2-yl)-ethyl]-amide,
(21) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[1-(5-
dimethylamino-pentyl)-1 H-benzimidazol-2-yl]-ethyl}-amide,
(22) methyl4-[2-((R)-2-(4-amino-3,5-dibromo-phenyl)-1-{[4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-ethyl)-
benzimidazol-1-yl]-butyrate,
(23) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[6-chloro-1-(3-
dimethylamino-propyl)-1 H-benzimidazol-2-yl]-ethyl}-amide,
(24) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[1-(3-
dimethy!amino-propyl)-6-fluoro-1 H-benzimidazol-2-yl]-ethyl}-amide,
(25) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[1-(3-
dimethy!amino-propyl)-5-fluoro-1 H-benzimidazol-2-yl]-ethyl}-amide,
(26) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[5,6-dichloro-1-
(3-dimethylamino-propyl)-1 H-benzimidazol-2-yl]-ethyl}-amide,
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(27) methyl2-((R)-2-(4-amino-3,5-dibromo-phenyl)-1-{[4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-ethyl)-
1-(3-pyrrolidin-1-yl-propyl)-1 H-benzimidazole-5-carboxylate,
(28) 2-(2-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-1-{[4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-ethyl)-
1-(3-pyrrolidin-1-yl-propyl)-1H-benzimidazole-5-carboxylic acid,
(29) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{(R)-2-(3,5-dibromo-4-hydroxy-phenyl)-1-[1-(1-methyl-
piperidin-4-ylmethyl)-1 H-benzimidazol-2-yl]-ethyl}-amide,
(30) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{(R)-2-(3,5-dibromo-4-hydroxy-phenyl)-1-[1-(1-methyl-
piperidin-4-yl)-1 H-benzimidazol-2-yl]-ethyl}-amide,
(31) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{(R)-2-(3,5-dibromo-4-hydroxy-phenyl)-1-[1-(3-
dimethylamino-propyl)-1 H-benzimidazol-2-yl]-ethyl}-amide,
(32) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{(R)-2-(3,5-dibromo-4-hydroxy-phenyl)-1-[1-(3-
pyrrolidin-1-yl-propyl)-1 H-benzimidazol-2-yl]-ethyl}-amide,
(33) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-[1-[6-chloro-1-(3-dimethylamino-propyl)-1H-
benzimidazol-2-yl]-2-(3,4-dibromo-phenyl)-ethyl]-amide,
(34) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{2-(3,4-dibromo-phenyl)-1-[5,6-dichloro-1-(3-
dimethylamino-propyl)-1 H-benzimidazol-2-yl]-ethyl}-amide,
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(35) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-[1-[7-chloro-1-(3-dimethylamino-propyl)-1H-
benzimidazol-2-yl]-2-(3,4-dibromo-phenyl)-ethyl]-amide,
(36) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{2-(3,4-dibromo-phenyl)-1-[1-(3-dimethylamino-propyl)-
6-fluoro-1 H-benzimidazol-2-yl]-ethyl}-amide,
(37) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{2-(3,4-dibromo-phenyl)-1-[1-(1-methyl-piperidin-4-yl)-
1 H-benzimidazol-2-yl]-ethyl}-amide,
(38) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{2-(3,4-dibromo-phenyl)-1-[1-(3-pyrrolidin-1-yl-propyl)-
1 H-benzimidazol-2-yl]-ethyl}-amide,
(39) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{2-(3,4-dibromo-phenyl)-1-[1-(1-methyl-piperidin-4-
ylmethyl)-1 H-benzimidazol-2-yl]-ethyl}-amide,
(40) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-[2-(3,4-dibromo-phenyl)-1-(1-pyridin-3-ylmethyl-1H-
benzimidazol-2-yl)-ethyl]-amide,
(41) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{2-(3,4-dibromo-phenyl)-1-[1-(3-dimethylamino-propyl)-
1 H-benzimidazol-2-yl]-ethyl}-amide,
(42) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{2-(3,4-dibromo-phenyl)-1-[1-(4-dimethylamino-butyl)-
1 H-benzimidazol-2-yl]-ethyl}-amide,
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(43) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{2-(3,4-diethyl-phenyl)-1-[1-(3-dimethylamino-propyl)-
1 H-benzimidazol-2-yl]-ethyl}-amide,
(44) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{2-(3,4-diethyl-phenyl)-1-[1-(4-dimethylamino-butyl)-1H-
benzimidazol-2-yl]-ethyl}-amide,
(45) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{2-(3,4-diethyl-phenyl)-1-[1-(1-methyl-piperidin-4-yl)-1H-
benzimidazol-2-yl)-ethyl}-amide,
(46) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{2-(3,4-diethyl-phenyl)-1-[1-(3-pyrrolidin-1-yl-propyl)-1 H-
benzimidazol-2-yl]-ethyl}-amide,
(47) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{2-(3,4-diethyl-phenyl)-1-[1-(1-methyl-piperidin-4-
ylmethyl)-1 H-benzimidazol-2-yl]-ethyl}-amide,
(48) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-[2-(3,4-diethyl-phenyl)-1-(1-pyridin-3-ylmethyl-1H-
benzimidazol-2-yl)-ethyl]-amide,
(49) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{2-(3,5-bis-trifluoromethyl-phenyl)-1-[1-(1-methyl-
piperidin-4-yl)-1 H-benzimidazol-2-yl]-ethyl}-amide,
(50) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{2-(3,5-bis-trifluoromethyl-phenyl)-1-[1-(3-pyrrolidin-1-yl-
propyl)-1 H-benzimidazol-2-yl]-ethyl}-amide,
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(51) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{2-(3,5-bis-trifluoromethyl-phenyl)-1-[1-(1-methyl-
piperidin-4-ylmethyl)-1 H-benzimidazol-2-yl]-ethyl}-amide,
(52) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{2-(3,5-bis-trifluoromethyl-phenyl)-1-[1-(3-
dimethylamino-propyl)-1 H-benzimidazol-2-yl]-ethyl}-amide,
(53) 2-(2-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-1-{[4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino-ethyl)-
1-(3-pyrrolidin-1-yl-propyl)-1H-benzimidazole-5-carboxylate methyl,
(54) 2-(2-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-1-{[4-(2-oxo-1,2,4,5-
tetrahyd ro-1, 3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-ethyl)-
1-(3-pyrrolidin-1-yl-propyl)-1H-benzimidazole-5-carboxylic acid,
(55) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{2-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-1-[1-(1-
methyl-piperidin-4-yl)-1 H-benzimidazol-2-yl]-ethyl}-amide,
(56) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{2-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-1-[1-(3-
pyrrolidin-1-yl-propyl)-1 H-benzimidazol-2-yl]-ethyl}-amide,
(57) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{2-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-1-[1-(1-
methyl-piperidin-4-ylmethyl)-1 H-benzimidazol-2-yl]-ethyf~-amide,
(58) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-[2-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-1-(1-
pyridin-3-ylmethyl-1 H-benzimidazol-2-yl)-ethyl]-amide,
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(59) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{2-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-1-[1-(3-
dimethylamino-propyl)-1 H-benzimidazol-2-yl]-ethyl}-amide,
(60) 3-(1-{4-(3,4-diethyl-phenyl)-3-[1-(3-dimethylamino-propyl)-1H-
benzimidazol-2-yl]-butyryl}-piperidin-4-yl)-1,3,4,5-tetrahydro-1,3-
benzodiazepin-2-one,
(61 ) 3-(1-{4-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-3-[1-(3-pyrrolidin-1-
yl-propyf)-1 H-benzimidazol-2-yl]-butyryl}-piperidin-4-yl)-1,3,4,5-
tetrahydro-1,3-benzodiazepin-2-one,
(62) 3-(1-{4-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-3-[1-(3-imidazol-1-
yl-propyl)-1 H-benzimidazol-2-ylJ-butyryl}-piperidin-4-yl)-1,3,4,5-
tetrahydro-1,3-benzodiazepin-2-one,
(63) 3-(1-{4-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-3-[5-(3-
dimethylamino-propyl)-1-ethyl-1 H-benzimidazol-2-yl]-butyryl}-piperidin-
4-yl)-1,3,4,5-tetrahydro-1,3-benzodiazepin-2-one,
(64) 3-(1-{4-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-3-[1-(3-
diethylamino-propyl)-1 H-benzimidazol-2-yl]-butyryl}-piperidin-4-yl)-
1,3,4,5-tetrahydro-1,3-benzodiazepin-2-one,
(65) 3-(1-{4-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-3-[1-(4-hydroxy-
butyl)-1 H-benzimidazol-2-yl]-butyryl}-piperidin-4-yl)-1,3,4,5-tetrahydro-
1,3-benzodiazepin-2-one,
(66) 3-(1-{4-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-3-[1-(1-methyl-
piperidin-3-ylmethyl)-1 H-benzimidazol-2-yl]-butyryl}-piperidin-4-yl)-
1, 3,4,5-tetrahydro-1,3-benzodiazepin-2-one,
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(67) 3-[1-(4-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-3-{1-[2-(4-methyl-
piperazin-1-yl)-ethyl]-1 H-benzimidazol-2-yl}-butyryl)-piperidin-4-yl]-
1,3,4,5-tetrahydro-1,3-benzodiazepin-2-one,
(68) 3-{1-[4-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-3-(1-pyridin-4-
ylmethyl-1 H-benzimidazol-2-yl)-butyryl]-piperidin-4-yl}-1,3,4,5-
tetrahydro-1, 3-benzodiazepin-2-one,
(69) 3-{1-[4-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-3-(1-piperidin-4-
ylmethyl-1 H-benzimidazol-2-yl)-butyryl]-piperidin-4-yl}-1,3,4,5-
tetrahydro-1,3-benzodiazepin-2-one,
(70) 3-(1-{4-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-3-[1-(3-
dimethylamino-2,2-dimethyl-propyl)-1 H-benzimidazol-2-yl]-butyryl}-
piperidin-4-yl)-1,3,4,5-tetrahydro-1,3-benzodiazepin-2-one,
(71) 3-(1-{4-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-3-[7-(3-
dimethylamino-propoxy)-1 H-benzimidazol-2-yl]-butyryl}-piperidin-4-yl)-
1,3,4,5-tetrahydro-1,3-benzodiazepin-2-one,
(72) 3-{1-[4-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-3-(1-piperidin-4-
ylmethyl-1 H-imidazo[4,5-c]pyridin-2-yl)-butyryl]-piperidin-4-yf}-1,3,4,5-
tetrahydro-1,3-benzodiazepin-2-one,
(73) 3-(1-{4-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-3-[3-(3-pyrrolidin-1-
yl-propyl)-3H-imidazo[4, 5-c]pyrid in-2-yl)-butyryl}-piperidin-4-yl)-1, 3,4, 5-
tetrahydro-1,3-benzodiazepin-2-one,
(74) 3-{1-[4-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-3-(1-methyl-6-
pyrrolidin-1-ylmethyl-1 H-benzimidazol-2-yl)-butyryl]-piperidin-4-yl}-
1,3,4,5-tetrahydro-1,3-benzodiazepin-2-one,
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(75) enantiomer of 3-(1-{4-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-3-[1-
(3-diethylamino-propyl)-1 H-benzimidazol-2-yl]-butyryl}-piperidin-4-yl)-
1, 3,4, 5-tetrahydro-1, 3-benzodiazepin-2-one,
(76) enantiomer of 3-[1-(4-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-3-{1
[2-(4-methyl-piperazin-1-yl)-ethyl]-1 H-benzimidazol-2-yl}-butyryl)
piperidin-4-yl]-1,3,4,5-tetrahydro-1,3-benzodiazepin-2-one,
their stereoisomers and salts.
The compounds of general formula I are prepared by methods known in
principle. The following methods have proved particularly suitable for
preparing the compounds of general formula I according to the invention:
a) In order to prepare compounds of general formula I wherein X denotes
the oxygen atom and Z denotes the -NR' group, and wherein R', R3 and Ra
and A are as hereinbefore defined
Reacting amines of general formula II,
R NH (II),
wherein
R is as hereinbefore defined, with carbonic acid derivatives of general
formula
III,
O
X' ~X1 (III)
wherein
X' denotes a nucleofugic group, preferably the 1 H-imidazol-1-yl, 1 H-1,2,4-
triazol-1-yl, trichloromethoxy or 2,5-dioxopyrrolidin-1-yloxy group,
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and with compounds of general formula IV,
R2
( ~ H2)n
R~
R3 (IV),
H
N
R5 Ra
wherein
R', R2, R3, R4, R5 and n are as hereinbefore defined,
and, if necessary, subsequently cleaving any protecting groups or converting
precursor functions by the methods described above.
The reactions which are theoretically two-step reactions are usually carried
out
as one-pot processes, preferably by reacting one of the two components II or
IV with equimolar quantities of the carbonic acid derivative of general
formula III
in a suitable solvent at lower temperature in the first stage, then adding at
least
equimolar amounts of the other component IV or II and finishing the reaction
at
elevated temperature. The reactions with bis-(trichloromethyl)-carbonate are
preferably carried out in the presence of at least 2 equivalents (based on bis-
(trichloromethyl)-carbonate) of a tertiary base, e.g. triethylamine, N-ethyl-
diisopropylamine, pyridine, 1,5-diazabicyclo[4,3,0]non-5-ene, 1,4-diazabicyclo-
[2,2,2]octane or 1,8-diazabicyclo[5,4,0]undec-7-ene. Examples of solvents,
which should be anhydrous, include tetrahydrofuran, dioxane, dimethyl
formamide, dimethyfacetamide, N-methyl-2-pyrrolidone, 1,3-dimethyl-2-
imidazolidinone or acetonitrile; if bis-(trichloromethyl)-carbonate is used as
the
carbonyl component anhydrous chlorohydrocarbons such as dichloromethane,
1,2-dichloroethane or trichloroethylene are preferred. The reaction
temperatures for the first reaction step are between -30 and +25°C,
preferably
-5 and +10°C, for the second reaction step they are between
+15°C and the
boiling temperature of the solvent used, preferably between +20°C and
+70°C
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(cf. also: H. A. Staab and W. Rohr, "Synthesen mit heterocyclischen Amiden
(Azoliden)", Neuere Methoden der Praparativen Organischen Chemie, Vol. V,
p. 53 - 93, Verlag Chemie, Weinheim/Bergstr., 1967; P. Majer and R.S.
Randad, J. Org. Chem. 59, 1937 - 1938 (1994); K. Takeda, Y. Akagi, A. Saiki,
T. Sukahara and H. Ogura, Tetrahedron Letters 24 (42), 4569 - 4572 (1983)).
b) fn order to prepare compounds of general formula I wherein R3 and R4
together represent a 1,3-butadien-1,4-ylene group wherein
one, two or three methyne groups may each be replaced by a nitrogen
atom,
a hydrogen atom may be replaced by a fluorine, chlorine, bromine or
iodine atom, by a C~_3-alkyl, trifluoromethyl, difluoromethyl, cyclopropyl,
hydroxy, C~_3-alkoxy, difluoromethoxy, trifluoromethoxy, cyano, nitro,
amino, C~_3-alkyl-amino, di-(C~_3-alkyl)-amino, carboxy, C~_3-alkoxy-
carbonyl, aminocarbonyl, C~_3-alkyl-aminocarbonyl, di-(C~_3-alkyl)-
aminocarbonyl, di-(C~_3-alkyl)-amino-C2_3-alkyl-aminocarbonyl, amino-C,_3-
alkyl, C~_3-alkyl-amino-C~_3-alkyl or di-(C,_3-alkyl)-amino-C,_3-alkyl group
or
by a 4- to 7-membered cycloalkyleneimino-carbonyl group wherein
one or two hydrogen atoms may each be replaced by a C~_3-alkyl
group and/or
in each case the methylene group in the 4 position of a 6- or 7-
membered cycloalkyfeneimino moiety may be replaced by an oxygen
or sulphur atom, by a sulphinyl, sulphonyl, -NH, -N(C~_3-alkyl) or
-N(C~_3-alkylcarbonyl)- group,
and a second hydrogen atom may optionally additionally be replaced by a
fluorine, chlorine, bromine or iodine atom, by a C~_3-alkyl, trifluoromethyl,
36 Case 1 /1308
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difluoromethyl, cyclopropyl, hydroxy, C~_3-alkoxy, difluoromethoxy or
trifluoromethoxy group, and
anellation of an amide of general formula
R2
X ( i HZ)n
R N~Z~A C HN~ R (V),
N ~ R4,
H
R3,
wherein R, X, Z, A, n, R2 and R5 are as hereinbefore defined, R3~ and R~
together represent a 1,3-butadien-1,4-ylene group wherein
one, two or three methyne groups may each be replaced by a nitrogen
atom,
a hydrogen atom may be replaced by a fluorine, chlorine, bromine or
iodine atom, by a C~_3-alkyl, trifluoromethyl, difluoromethyl, cyclopropyl,
hydroxy, C~_3-alkoxy, difluoromethoxy, trifluoromethoxy, cyano, vitro,
amino, C~_~-alkyl-amino, di-(C~_3-alkyl)-amino, carboxy, C~_3-alkoxy-
carbonyl, aminocarbonyl, C~_3-alkyl-aminocarbonyl, di-(C~_3-alkyl)-
aminocarbonyl, di-(C~_3-alkyl)-amino-C2_3-alkyl-aminocarbonyl, amino-C~_3-
alkyl, C~_3-alkyl-amino-C~_3-alkyl or di-(C~_3-alkyl)-amino-C~_3-alkyl group
or
by a 4- to 7-membered cycloalkyleneiminocarbonyl group wherein
one or two hydrogen atoms may each be replaced by a C,_3-alkyl
group and/or
in each case the methylene group in the 4 position of a 6- or 7-
membered cycloalkyleneimino moiety may be replaced by an oxygen
37 Case 1 /1308
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or sulphur atom, by a sulphinyl, sulphonyl, -NH, -N(C~_3-alkyl) or
-N(C~_3-alkyl-carbonyl) group,
and a second hydrogen atom may optionally additionally be replaced by a
fluorine, chlorine or bromine atom, by a C~_3-alkyl, trifluoromethyl,
difluoromethyl, cyclopropyl, hydroxy, C~_3-alkoxy, difluoromethoxy or
trifluoromethoxy group, and
The reaction is optionally carried out in a solvent or mixture of solvents
such
as dichloromethane, acetonitrile, dimethylformamide, dimethylsulphoxide,
sulpholane, benzene, toluene, chlorobenzene, tetrahydrofuran,
benzene/tetrahydrofuran or dioxane conveniently in the presence of an
anhydrous acid such as trifluoroacetic acid, methanesulphonic acid, p-
toluenesulphonic acid or sulphuric acid or in the presence of a dehydrating
agent, e.g, in the presence of isobutyl chloroformate, thionyl chloride,
trimethylchlorosilane, phosphorus trichloride, phosphorus pentoxide,
N,N'-dicyclohexylcarbodiimide,
N,N'-dicyclohexylcarbodiimide/N-hydroxysuccinimide or
1-hydroxy-benzotriazole, N,N'-carbonyldiimidazole or
triphenylphosphine/carbon tetrachloride, at temperatures between -20 and
200°C, but preferably at temperatures between -10 and 160°C.
c) In order to prepare compounds of general formula I wherein X denotes
the oxygen atom and Z denotes the -CH2 group:
Coupling a carboxylic acid of general formula
/ R2
(CH2)n
HOOC~A N R3 (VI),
N
R5 Ra
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wherein
R2 to R5, A and n are as hereinbefore defined,
with a compound of general formula
R NH (II),
wherein
R is as hereinbefore defined.
The coupling is preferably carried out using methods known from peptide
chemistry (cf. e.g. Houben-Weyl, Methoden der Organischen Chemie, Vol.
15/2), for example using carbodiimides such as e.g. dicyclohexylcarbodiimide
(DCC), diisopropyl carbodiimide (DIC) or ethyl-(3-dimethylaminopropyl)-
carbodiimide, O-(1H-benzotriazol-1-yl)- N,N-N',N'-tetramethyluronium
hexafluorophosphate (HBTU) or tetrafluoroborate (TBTU) or
1 H-benzotriazol-1-yl-oxy-tris-(dimethylamino)-phosphonium hexa-
fluorophosphate (BOP). By adding 1-hydroxybenzotriazole (HOBt) or
3-hydroxy-4-oxo-3,4-dihydro-1,2,3-benzotriazine (HOObt) any possible
racemisation can additionally be suppressed, if desired, or the reaction speed
can be increased. The couplings are normally carried out with equimolar
amounts of the coupling components as well as the coupling reagent in
solvents such as dichloromethane, tetrahydrofuran, acetonitrile, dimethyl
formamide (DMF), dimethyl acetamide (DMA), N-methylpyrrolidone (NMP) or
mixtures thereof and at temperatures between -30 and +30°C, preferably -
20
and +20°C. If necessary, N-ethyl-diisopropyfamine (DIEA) (Hiinig base)
is
preferably used as an additional auxiliary base.
The so-called anhydride process is used as a further coupling method for
synthesising compounds of general formula I (cf. also: M. Bodanszky,
"Peptide Chemistry", Springer-Verlag 1988, p. 58-59; M. Bodanszky,
39 Case 1 /1308
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"Principles of Peptide Synthesis", Springer-Verlag 1984, p. 21-27). The
Vaughan variant of the mixed anhydride process is preferred (J.R. Vaughan
Jr., J. Amer. Chem.Soc. 73, 3547 (1951)), in which the mixed anhydride of the
carboxylic acid of general formula II which is to be coupled and monoisobutyl
carbonate is obtained, using isobutyl chlorocarbonate in the presence of
bases such as 4-methyl-morpholine or 4-ethylmorpholine. The preparation of
this mixed anhydride and the coupling with amines are carried out in a one-
pot process, using the abovementioned solvents and at temperatures
between -20 and +25°C, preferably 0 and +25°C.
d) In order to prepare compounds of general formula I wherein X denotes
the oxygen atom and Z denotes the -CH2 group:
Coupling a compound of general formula
Rz
( iH2)n
~A j R3 (VII),
Nu
N
R5 Ra
wherein
A, n, and R2 to R5 are as hereinbefore defined and Nu denotes a leaving
group, for example a halogen atom, such as the chlorine or bromine atom, an
alkylsulphonyloxy group with 1 to 10 carbon atoms in the alkyl moiety, a
phenylsulphonyloxy or naphthylsulphonyloxy group optionally mono-, di- or
trisubstituted by chlorine or bromine atoms, by methyl or nitro groups, while
the substituents may be identical or different, a 1H-imidazol-1-yl, a 1H-pyra-
zol-1-yl, 1 H-1,2,4-triazol-1-yl, 1 H-1,2, 3-triazol-1-yl or 1 H-1,2, 3,4-
tetrazol-1-yl
group optionally substituted in the carbon skeleton by 1 or 2 methyl groups, a
vinyl, propargyl, p-nitrophenyl, 2,4-dinitrophenyl, trichlorophenyl,
pentachlorophenyl, pentafluorophenyl, pyranyl or pyridinyl, dimethylaminyloxy,
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2(11-x-oxopyridin-1-yloxy, 2,5-dioxopyrrolidin-1-yloxy, phthalimidyloxy, 1H-
benzotriazol-1-yloxy or azide group,
with a compound of general formula
R NH (II),
wherein
R is as hereinbefore defined.
The reaction is carried out under Schotten-Baumann or Einhorn conditions,
i.e. the components are reacted in the presence of at least one equivalent of
an auxiliary base at temperatures between -50°C and +120°C,
preferably
-10°C and +30°C, and optionally in the presence of solvents. The
auxiliary
bases used are preferably alkali metal and alkaline earth metal hydroxides,
e.g. sodium hydroxide, potassium hydroxide or barium hydroxide, alkali metal
carbonates, e.g. sodium carbonate, potassium carbonate or caesium
carbonate, alkali metal acetates, e.g, sodium or potassium acetate, as well as
tertiary amines, e.g. pyridine, 2,4,6-trimethylpyridine, quinoline,
triethylamine,
N-ethyl-diisopropylamine, N-ethyl-dicyclohexylamine,
1,4-diazabicyclo[2,2,2]octane or 1,8-diazabicyclo[5,4,0]undec-7-ene, the
solvents used may be, for example, dichloromethane, tetrahydrofuran,
1,4-dioxane, acetonitrile, dimethyl formamide, dimethyl acetamide,
N-methyl-pyrrolidone or mixtures thereof; if alkali metal or alkaline earth
metal
hydroxides, alkali metal carbonates or acetates are used as the auxiliary
bases, water may also be added to the reaction mixture as cosolvent.
e) In order to prepare compounds of general formula I wherein X denotes
the oxygen atom and Z denotes the group -NH-:
Reacting isocyanates of general formula VIII,
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RZ
( IH2)I1
O-C-NBA N R3 (VIII),
N
l
R5 Ra
wherein
R2 to R5, A and n are as hereinbefore defined
with amines of general formula II,
R NH (II),
wherein
R is as hereinbefore defined, and, if necessary, subsequently cleaving
protecting groups or treating precursor functions by the methods described
above.
The reaction is carried out at temperatures between 0°C and
150°C,
preferably between 20°C and 100°C, and optionally in the
presence of
anhydrous solvents, e.g. tetrahydrofuran, 1,4-dioxane, dimethylformamide,
dimethylacetamide, N-methyl-2-pyrrolidone or 1,3-dimethyl-2-imidazolidinone
or mixtures thereof.
f) In order to prepare compounds of general formula I wherein X denotes one
of the groups =N-CN or =N-S02-R6 and Z denotes the group -NR'-, where R'
and R6 are as hereinbefore defined:
Reacting compounds of general formula
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~ Rz
X. (CHz)n
N Rs
Nu
N ~ (IX),
R5 Ra
wherein A, n and Rz to R5 are as hereinbefore defined, X' denotes one of the
groups =N-CN or =N-SOz-R6, Z' denotes the group -NR', while R' and R6 are
as hereinbefore defined, and Nu is a leaving group, for example an alkoxy,
aryloxy, alkylthio, alkylsulphinyl or alkylsulphonyl group each with up to 10
carbon atoms, e.g. the methoxy, ethoxy, phenyloxy, methylthio, ethylthio,
methylsulphinyl, ethylsulphinyl, propylsulphinyl, isopropylsulphinyl,
methylsulphonyl or ethylsulphonyl group, the chlorine or bromine atom, the
S02H, S03H or OPOC12- group, but preferably the phenoxy group,
with secondary amines of general formula
R NH (ll),
wherein R is as hereinbefore defined.
The reactions are carried out analogously to methods known from the
literature (cf. G. B. L. Smith, J. Amer. Chem. Soc. 51, 476 [1929]; B. Rathke,
Chem. Ber. 17, 297 (1884]; R. Phillips and H. T. Clarke, J. Amer. Chem. Soc.
45, 1755 [1923]; S. J. Angyal and W. K. Warburton, J. Amer. Chem. Soc. 73,
2492 [1951]; H. Lecher and F. Graf, Chem. Ber. 56, 1326 [1923]; J. Wityak, S.
J. Gould, S. J. Hein and D. A. Keszler, J. Org. Chem. 52, 2179 [1987]; T.
Teraji, Y. Nakai, G. J. Durant, WO-A-81/00109, Chem. Abstr. 94, 192336z
(1981]; C. A. Maryanoff, R. C. Stanzione, J. N. Plampin and J. E. Mills, J.
Org.
Chem. 51, 1882 - 1884 [1986]; A. E. Miller and J. J. Bischoff, Synthesis 1986,
777; R. A. B. Bannard, A. A. Casselman, W. F. Cockburn and G. M. Brown,
Can. J. Chem. 36, 1541 [1958]; Aktieselskabet Grea, Kopenhagen,
DE2826452-G2; K. Kim, Y. T. Lin and H. S. Mosher, Tetrah. Letters 29,
43 Case 1 /1308
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3183-3186 [1988]; H. B. Arzeno et al., Synth. Commun. 20, 3433-3437 [1990];
H. Bredereck and K. Bredereck, Chem. Ber. 94, 2278 [1961]; H. Eilingsfeld,
G. Neubauer, M. Seefelder and H. Weidinger, Chem. Ber. 97, 1232 [1964]; P.
Pruszynski, Can. J. Chem. 65, 626 [1987]; D. F. Gavin, W. J. Schnabel, E.
Kober and M. A. Robinson, J. Org. Chem. 32, 2511 [1967]; N. K. Hart, S. R.
Johns, J. A. Lamberton and R. I. Willing, Aust. J. Chem. 23, 1679 [1970];
CIBA Ltd., Belgian Patent 655403; Chem. Abstr. 64, 17481 [1966]; J. P.
Greenstein, J. Org. Chem. 2, 480 [1937]; F. L. Scott and J. Reilly, J. Amer.
Chem. Soc. 74, 4562 [1952]; W. R. Roush and A. E. Walts, J. Amer. Chem.
Soc. 106, 721 (1984]; M. S. Bernatowicz, Y. Wu and G. R. Matsueda, J. Org.
Chem. 57, 2497-2502 [1992]; H. Tsunematsu, T. Imamura and S. Makisumi,
J. Biochem. 94, 123-128 [1983]; R. Mohr, A. Buschauer and W. Schunack,
Arch. Pharm. 321, 221-227 [1988]; K. Atwal, F. N. Ferrara and S. Z. Ahmed,
Tetrah. Lett. 35, 8085-8088 [1994]; P. J. Garratt, C. J. Hobbs and R.
Wrigglesworth, J. Org. Chem. 54, 1062-1069 [1989]; P. J. Garratt and S. N.
Thorn, Tetrahedron 49, 6885-6898 [1993]) at temperatures between
0°C and
+100°C, preferably +40°C and +80°C, and using inert
solvents, for example
dichloromethane, tetrahydrofuran, 1,4-dioxane, acetonitrile,
dimethylformamide, 2-pentanol, dimethylacetamide, N-methylpyrrolidone or
mixtures thereof and generally in the presence of auxiliary bases,
particularly
alkali metal carbonates, such as sodium or potassium carbonate, or tertiary
amines, preferably N-ethyl-diisopropylamine or triethylamine.
In the reactions described above, any reactive groups present such as
hydroxy, carboxy, amino or imino groups may be protected during the reaction
by methods known from the literature by conventional protecting groups which
are cleaved again after the reaction; the protecting groups conventionally
used in peptide chemistry may be used, in particular. Information on this may
be found in WO 98111128 for example.
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Alternatively, compounds of type (I) may also be prepared as follows:
z
X R ~ CHZ)n TFA, X R ~~CH2)~
DCM, RT ~A O
~A O HO
O ~
O- \O O
O, O O~R, R~ R
R
TBTU i HOBT,
20 °C
X R~~CHZ)~ NaOH, EtOH / H20 X R~'~CH2)
R~~~N~AI O dann R~~~% N~A O
OH HCI, Ruckfluss R~ O O~R'
CDI, THF
NaBH4, HZO
Dess-Martin- R2~
X ~CHZ)~ Periodinan X ~CHz)~
R~~C~% N~ IAVOH pCM, RT R'~~~N~AI O
H
HZN R3
HCI, DMF
Luft, RT
HN R4
R
R2
X ~~CHz)n
R~~C~N~A''~N~--Rs
RS~N
dann = then; R~ckfluss = reflux; Dess-Martin-Periodinan = Dess-Martin-
Periodinane; Luft= air.
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Stereoisomeric compounds of formula (I) may be separated in principle by
conventional methods. The diastereomers may be separated on the basis of
their different physico-chemical properties, e.g. by fractional
crystallisation
from suitable solvents, by high pressure liquid or column chromatography,
using chiral or preferably non-chiral stationary phases.
Racemates covered by general formula (I) may be separated for example by
HPLC on suitable chiral stationary phases (e.g. Chiral AGP, Chiralpak AD).
Racemates which contain a basic or acidic function can also be separated via
the diastereomeric, optically active salts which are produced on reacting with
an optically active acid, for example (+) or (-)-tartaric acid, (+) or (-)-
diacetyl
tartaric acid, (+) or (-)-monomethyl tartrate or (+)-camphorsulphonic acid, or
an optically active base, for example with (R)-(+)-1-phenylethylamine, (S)-(-)-
1-phenylethylamine or (S)-brucine.
According to a conventional method of separating isomers, the racemate of a
compound of general formula (I) is reacted with one of the abovementioned
optically active acids or bases in equimolar amounts in a solvent and the
resulting crystalline, diastereomeric, optically active salts thereof are
separated using their different solubilities. This reaction may be carried out
in
any type of solvent provided that it is sufficiently different in terms of the
solubility of the salts. Preferably, methanol, ethanol or mixtures thereof,
for
example in a ratio by volume of 50:50, are used. Then each of the optically
active salts is dissolved in water, neutralised with a base such as sodium -
carbonate or potassium carbonate, sodium hydroxide solution or potassium
hydroxide solution and in this way the corresponding free compound is
obtained in the (+) or (-) form.
The (R) or (S) enantiomer alone or a mixture of two optically active
diastereomeric compounds covered by general formula I may also be
obtained by performing the syntheses described above with a suitable
reaction component in the (R) or (S) configuration.
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The starting compounds of general formulae II and III are commercially
available or are prepared by methods known from the literature. Starting
compounds of general formula (II) may be obtained according to the methods
described in WO 98/11128 , WO 00155154 and DE 199 52 146.
Isocyanates of general formula VIII may readily be obtained from
corresponding a-amino acid derivatives or the hydrochlorides thereof by
reacting with phosgene, diphosgene or triphosgene in the presence of
pyridine (cf. also: J.S. Nowick, N.A. Powell, T.M. Nguyen and G. Noronha, J.
Org. Chem. 57, 7364-7366 [1992]).
Starting compounds of general formula IV are obtained for example according
to the following synthesis diagram, in which A denotes a carbon atom
substituted by a hydrogen atom or a C~_3-alkyl group:
/ R2
R3.
O ( iH2)n +, R4~ DCC, EtN~Pr2, CH2C12
H2N ~ 0°C
O H~A~COOH O
R2
R2 ( ~ H2)n
O (CH2)n iA
,A N R3~ H2N~R5 H2N ~=N
Eisessig; Riickflu(3 R5~N ~ R3'
O
O R4' R4,
Eisessig = glacial acetic acid; Ruckfluss = reflux.
Starting compounds of general formula V are obtained for example according
to the following synthesis diagram:
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/ R2 Rs
(CH2)r, HN/
X
O + H2N ~ R4. TBTU / HOBT, 20°C
R N z
OH Rs
/ R2
X ( iHz)n
~~ 5
R N~z~A O HN/ R (V)
N ~R
H
R3,
The starting materials required are either described in WO 98/11128 or
obtained starting from 1-fluoro-2-nitro-aryl or heteroaryl compounds by
reacting with corresponding amines and subsequently reducing the nitro to
the amino group.
Compounds of type VI are obtained for example according to the following
synthesis diagram, while R3 and R4 together may not form a 1,3-butadien-1,4-
ylene group.
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R2 O
H=N~~ R2
(CHx)~ RT3 'R4 ~ (CH=)i
A O _
p DCC, NEt'Pr~ A O
OH CHzCI= O~ ~ R4
H~N~O
R3
HsN-R5
Elsessfg; reflux
90°/
~ R'
(CHI)"
HOOC~A /N R°
(VI)
Rs R~
Eisessig = glacial acetic acid
Compounds of type VII are obtained by reactions known from the literature
starting from the corresponding carboxylic acids (VI).
Compounds of type IX are obtained for example by reacting the amines of
general formula
R2
H2)n
H N~A~N R3
(IX),
N
R5 Ra
wherein A, n, R2 to R5 are as hereinbefore defined with iminocarbonates of
general formula
Nu-X'-Nu"
wherein X' denotes one of the abovementioned groups =N-CN or =N-S02-R6,
Nu is a leaving group, for example an alkoxy, aryloxy, alkylthio,
alkylsulphinyl
or alkylsulphonyl group with in each case up to 10 carbon atoms, e.g. the
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methoxy, ethoxy, phenyloxy, methylthio, methylsulphinyl, methylsulphonyl, the
chlorine or bromine atom, the S02H, S03H or OPOC12- group and Nu", which
may be different from Nu or may also be the same as Nu, may assume the
same meanings as Nu.
The compounds of general formula I obtained may, if they contain suitable
basic functions, be converted, particularly for pharmaceutical use, into their
physiologically acceptable salts with inorganic or organic acids. Suitable
acids
include for example hydrochloric acid, hydrobromic acid, phosphoric acid,
nitric acid, sulphuric acid, methanesulphonic acid, p-toluenesulphonic acid,
acetic acid, fumaric acid, succinic acid, lactic acid, mandelic acid, malic
acid,
citric acid, tartaric acid or malefic acid.
Moreover, the new compounds of formula (I), if they contain an acid function,
for example a carboxy group, may if desired be converted into the addition
salts thereof with inorganic or organic bases, particularly for pharmaceutical
use into the physiologically acceptable addition salts thereof. Suitable bases
for this include, for example, sodium hydroxide, potassium hydroxide,
ammonia, cyclohexylamine, dicyclohexylamine, ethanolamine, diethanolamine
and triethanolamine.
The new compounds of general formula I and the physiologically acceptable
salts thereof have CGRP-antagonistic properties and exhibit good affinities in
CGRP receptor binding studies. The compounds display CGRP-antagonistic
properties in the pharmacological test systems described hereinafter.
The following experiments were carried out to demonstrate the affinity of
compounds of general formula I for human CGRP-receptors and their
antagonistic properties:
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A. Binding studies with SK-N-MC cells (expressing the human CGRP
receptor)
SK-N-MC cells are cultivated in "Dulbecco's modified Eagle medium". The
medium is removed from confluent cultures. The cells are washed twice with
PBS buffer (Gibco 041-04190 M), detached by the addition of PBS buffer
mixed with 0.02% EDTA, and isolated by centrifuging. After resuspension in
20 ml of "Balanced Salts Solution" [BSS (in mM): NaCI 120, KCI 5.4, NaHC03
16.2, MgS04 0.8, NaHP04 1.0, CaCl2 1.8, D-glucose 5.5, HEPES 30, pH
7.40] the cells are centrifuged twice at 100 x g and resuspended in BSS. After
the number of cells has been determined, the cells are homogenised using an
Ultra-Turrax and centrifuged for 10 minutes at 3000 x g. The supernatant is
discarded and the pellet is recentrifuged in Tris buffer (10 mM Tris, 50 mM
NaCI, 5 mM MgCl2, 1 mM EDTA, pH 7.40) enriched with 1 % bovine serum
albumin and 0.1% bacitracin, and resuspended (1 ml / 1000000 cells). The
homogenised product is frozen at -80°C. The membrane preparations are
stable for more than 6 weeks under these conditions.
After thawing, the homogenised product is diluted 1:10 with assay buffer (50
mM Tris, 150 mM NaCI, 5 mM MgCl2, 1 mM EDTA, pH 7.40) and
homogenised for 30 seconds with an Ultra-Turrax. 230 NI of the homogenised
product are incubated for 180 minutes at ambient temperature with 50 pM
1251-iodotyrosyl-Calcitonin-Gene-Related Peptide (Amersham) and increasing
concentrations of the test substances in a total volume of 250 NI. The
incubation is ended by rapid filtration through GF/B-glass fibre ~Iters
treated
with polyethyleneimine (0.1 %) using a cell harvester. The protein-bound
radioactivity is measured using a gamma counter. Non-specific binding is
defined as the bound radioactivity in the presence of 1 NM human CGRP-
alpha during incubation.
The concentration binding curves are analysed using computer-aided non-
linear curve matching.
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The compounds of general formula I show IC50 values s 10000 nM in the
test described.
B. CGRP Antagonism in SK-N-MC cells
SK-N-MC cells (1 million cells) are washed twice with 250 NI incubation buffer
(Hanks' HEPES, 1 mM 3-isobutyl-1-methylxanthine, 1% BSA, pH 7.4) and
pre-incubated at 37°C for 15 minutes. After the addition of CGRP (10
pl) as
agonist in increasing concentrations (10-11 to 10-6 M), or additionally the
substance in 3 to 4 different concentrations, the mixture is incubated for
another 15 minutes.
Intracellular cAMP is then extracted by the addition of 20 pl of 1 M HCI and
centrifugation (2000 x g, 4°C, for 15 minutes). The supernatants are
frozen in
liquid nitrogen and stored at -20°C.
The cAMP contents of the samples are determined by radioimmunoassay
(Messrs. Amersham) and the pA2 values of antagonistically acting
substances are determined graphically.
The compounds of general formula I exhibit CGRP-antagonistic properties in
the in vitro test model described, in a dosage range of between 10-" to 10-5
M.
In view of their pharmacological properties the compounds of general formula
I and the salts thereof with physiologically acceptable acids or bases are
thus
suitable for the acute and prophylactic treatment of headaches, particularly
migraine or cluster headaches. Moreover, the compounds of general formula I
also have a positive effect on the following diseases: complex regional pain
syndrome, non-insulin-dependent diabetes mellitus ("NIDDM"), cardiovascular
diseases, morphine tolerance, diarrhoea caused by clostridium toxin, skin
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diseases, particularly thermal and radiation-induced skin damage including
sunburn, inflammatory diseases, e.g. inflammatory diseases of the joints
(arthritis), neurogenic inflammation of the oral mucosa, inflammatory lung
diseases, allergic rhinitis, asthma, diseases accompanied by excessive
vasodilatation and consequent reduced circulation of blood through the
tissues, e.g. shock and sepsis. In addition, the compounds according to the
invention have a general pain-relieving effect. The symptoms of menopausal
hot flushes caused by vasodilatation and increased blood flow in oestrogen-
deficient women and hormone-treated patients with prostate carcinoma are
favourably affected by the CGRP-antagonists of the present application in a
preventive and acute-therapeutic capacity, this therapeutic approach being
distinguished from hormone replacement by the absence of side effects.
The dosage required to achieve a corresponding effect is conveniently 0.0001
to 3 mglkg of body weight, preferably 0.01 to 1 mg/kg of body weight, when
administered intravenously or subcutaneously and 0.01 to 10 mg/kg of body
weight, preferably 0.1 to 10 mg/kg of body weight when administered orally,
nasally or by inhalation, 1 to 3 x a day in each case.
If the treatment with CGRP antagonists and/or CGRP release inhibitors is
given as a supplement to conventional hormone substitution, it is advisable to
reduce the doses specified above, in which case the dosage may be from 1/5
of the lower limits mentioned above up to 1/1 of the upper limits specified.
The compounds prepared according to the invention may be administered
either on their own or optionally in combination with other active substances
for the treatment of migraine by intravenous, subcutaneous, intramuscular,
intrarectal, intranasal route, by inhalation, transdermally or orally, while
aerosol formulations are particularly suitable for inhalation. The
combinations
may be administered either simultaneously or sequentially.
Categories of active substance which may be used in the combination include
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e.g. antiemetics, prokinetics, neuroleptics, antidepressants, neurokinine
antagonists, anticonvulsants, histamine-H1 receptor antagonists,
antimuscarinics, ~i-blockers, a-agonists and a-antagonists, ergot alkaloids,
mild analgesics, non-steroidal antiinflammatories, corticosteroids, calcium
antagonists, 5-HT1 g/1 D agonists or other anti-migraine agents, which may be
formulated together with one or more inert conventional carriers and/or
diluents, e.g. with corn starch, lactose, glucose, microcrystalline cellulose,
magnesium stearate, polyvinyl pyrrolidone, citric acid, tartaric acid, water,
water/ethanol, water/glycerol, water/sorbitol, water/polyethylene glycol,
propylene glycol, cetylstearyl alcohol, carboxymethylcellulose or fatty
substances such as hard fat or suitable mixtures thereof, into conventional
galenic preparations such as plain or coated tablets, capsules, powders,
suspensions, solutions, metered dose aerosols or suppositories.
Thus other active substances which may be used for the combinations
mentioned above include for example the non-steroidal antiinflammatories
acclofenac, acemetacin, acetylsalicylic acid, azathioprin, diclofenac,
diflunisal,
fenbufen, fenoprofen, flurbiprofen, ibuprofen, indometacin, ketoprofen,
feflunomid, lornoxicam, mefenaminic acid, naproxen, phenylbutazone,
piroxicam, sulphasalazin, zomepirac or the pharmaceutically acceptable salts
thereof as well as meloxicam and other selective COX2-inhibitors, such as for
example rofecoxib and celecoxib.
It is also possible to use ergotamine, dihydroergotamine, metoclopramide,
domperidone, diphenhydramine, cyclizine, promethazine, chlorpromazine,
vigabatrin, timolol, isomethepten, pizotifen, botox, gabapentin, topiramat,
riboflavin, montelukast, lisinopril, prochloroperazine, dexamethasone,
flunarizine, dextropropoxyphene, meperidine, metoproloi, propranolol, nadolol,
atenolol, clonidine, indoramine, carbamazepine, phenytoin, valproate, ami-
tryptilin, lidocaine or diltiazem and other 5-HT~B,~p-agonists such as, for
example, almotriptan, avitriptan, eletriptan, frovatriptan, naratriptan,
rizatriptan, sumatriptan and zolmitriptan.
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The dosage of these active substances is expediently 1/5 of the lowest
recommended dose to 1/1 of the normally recommended dose, i.e. for
example 20 to 100 mg of sumatriptan.
The invention further relates to the use of the compounds of general formula I
as valuable adjuvants for the production and purification (by affinity
chromatography) of antibodies as well as in RIA and ELISA assays, after
suitable radioactive labelling, for example by direct labelling with '251
or'3'I or
by tritiation of suitable precursors, for example by replacing halogen atoms
with tritium, and as a diagnostic or analytical adjuvant in neurotransmitter
research.
The Examples which follow are intended to illustrate the invention:
Preliminary remarks:
As a rule, melting points, IR, UV,'H-NMR and/or mass spectra have been
obtained for the compounds prepared. Unless otherwise stated, Rf values
were obtained using ready- made silica gel TLC plates 60 F2sa (E. Merck,
Darmstadt, Item no. 1.05714) without chamber saturation. The Rf values
obtained under the name Alox were obtained using ready-made aluminium
oxide 60 F2sa TLC plates (E. Merck, Darmstadt, item no. 1.05713) without
chamber saturation. The ratios given for the eluants relate to units by volume
of the solvent in question. For chromatographic purification, silica gel made
by Millipore (MATREXT"", 35-70 my) was used. If no detailed information is
given as to the configuration, it is not clear whether it is a pure enantiomer
or
whether partial or even complete racemisation has occurred.
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The following abbreviations are used in the description of the experiments:
abs. absolute
Alox aluminium oxide (neutral
or basic)
Boc tert.-butoxycarbonyl
CDI N,N'-carbonyldiimidazole
CDT N,N'-carbonylditriazole
DMF N,N-dimethylformamide
ether diethyl ether
EtOAc ethyl acetate
EtOH ethanol
sat. saturated
semiconc. semiconcentrated
HCI hydrochloric acid
HOAc acetic acid
HOBt 1-hydroxybenzotriazole-hydrate
Hunig N,N-diisopropyl-ethylamine
base
i. vac. in vacuo (in a vacuum)
KOH potassium hydroxide
conc. concentrated
MeOH methanol
MTBE methyl-tert.-butylether
NaCI sodium chloride
NaOH sodium hydroxide
org. organic
RT ambient temperature
TBTU 2-(1H-benzotriazol-1-yl)-1,1,3,3-tetramethyluronium-
tetrafluoroborate
TFA trifluoroacetic acid
THF tetrahydrofuran
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The compounds are named in accordance with English nomenclature. For
example "4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carboxylic acid-{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[1-(3-dimethylamino-
propyl)-1 H-benzimidazol-2-yl]-ethyl}-amide" denotes the compound of the
following formula:
Br H
I
/ NCH
O Br
N
N]~/~~N~N
N~p H N I
H
N-CH3
H3C
Preparation of intermediate compounds
Intermediate product 1
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-
{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[2-(3-dimethylamino-propylamino)-
phenylcarbamoyl]-ethyl}-amide
4.8 mL propanephosphonic acid cycloanhydride was added to an ice-cooled
suspension of 1.0 g (1.64 mmol) (R)-3-(4-amino-3,5-dibromo-phenyl)-2-{[4-(2-
oxo-1,2,4,5-tetrahydro-benzo[d][1,3]diazepin-3-yl)-piperidin-1-carbonyl]-
amino}-propionic acid, 0.305 g (1.70 mmol) N-(3-dimethylamino-propyl)-
phenyl-1,2-diamine and 0.9 mL (8.1 mmol) N-methylmorpholine in 50 mL
dichloromethane with stirring. The solution was then stirred for 2 hours at 0
°C
and 16 hours at RT. The solvent was evaporated i. vac. and the product
formed (1.0 g; Yield: 78% of theory) was further reacted in its crude state.
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Intermediate product 2
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[2-(2-dimethylamino-ethylamino)-
phenylcarbamoyl]-ethyl}-amide
The intermediate product was obtained analogously to intermediate product 1
starting from (R)-3-(4-amino-3,5-dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-
tetrahydro-benzo[d][1, 3]diazepin-3-yl)-piperid in-1-carbonyl]-amino}-
propionic
acid and N-(2-dimethylamino-ethyl)-benzene-1,2-diamine.
Intermediate product 3
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-[(R)-2-(4-amino-3,5-dibromo-phenyl)-1-(2-methylamino-
phenylcarbamoyl)-ethyl]-amide
The intermediate product was obtained analogously to intermediate product 1
starting from (R)-3-(4-amino-3,5-dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-
tetrahydro-benzo[d][1,3]diazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic
acid and N-methyl-benzene-1,2-diamine.
Intermediate product 4
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-[(R)-2-(4-amino-3,5-dibromo-phenyl)-1-(2-amino-phenylcarbamoyl)
ethyl]-amide
The intermediate product was obtained analogously to intermediate product 1
starting from (R)-3-(4-amino-3,5-dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-
tetrahydro-benzo[d][1,3]diazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic
acid and benzene-1,2-diamine.
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Intermediate product 5
Methyl 4-amino-3-((R)-3-(4-amino-3,5-dibromo-phenyl)-2-{[4-(2-oxo-1,4-
dihydro-2H-quinazolin-3-yl)-piperidin-1-carbonyl]-amino}-propionylamino)-
benzoate
The intermediate product was obtained analogously to intermediate product 1
starting from (R)-3-(4-amino-3,5-dibromo-phenyl)-2-~[4-(2-oxo-1,4-dihydro-2H-
quinazolin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid and methyl 3,4-
diamino-benzoate.
Intermediate product 6
Methyl-4-amino-3-((R)-3-(4-amino-3,5-dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-
propionylamino)-benzoate
The intermediate product was obtained analogously to intermediate product 1
starting from (R)-3-(4-amino-3,5-dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid
and methyl 3,4-diaminobenzoate.
Intermediate product 7
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-[(R)-2-(4-amino-3,5-dibromo-phenyl)-1-(2-butylamino-phenylcarbamoyl)-
ethyl]-amide
The intermediate product was obtained analogously to intermediate product 1
starting from (R)-3-(4-amino-3,5-dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid
and N-butyl-benzene-1,2-diamine.
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Intermediate product 8
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[2-(3-pyrrolidin-1-yl-propylamino)-
phenylcarbamoyl]-ethyl}-amide
The intermediate product was obtained analogously to intermediate product 1
starting from (R)-3-(4-amino-3,5-dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid
and N-(3-pyrrolidin-1-yl-propyl)-benzene-1,2-diamine (Intermediate product
15).
Intermediate product 9
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-((R)-2-(4-amino-3,5-dibromo-phenyl)-1-{2-[(pyridin-3-ylmethyl)-amino]-
phenylcarbamoyl}-ethyl)-amide
The intermediate product was obtained analogously to intermediate product 1
starting from (R)-3-(4-amino-3,5-dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid
and N-pyridin-3-ylmethyl-benzene-1,2-diamine (Intermediate product 16).
Intermediate product 10
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-[(R)-2-(4-amino-3,5-dibromo-phenyl)-1-(2-benzylamino-
phenylcarbamoyl)-ethyl]-amide
The intermediate product was obtained analogously to intermediate product 1
starting from (R)-3-(4-amino-3,5-dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-
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tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid
and N-benzyl-benzene-1,2-diamine.
Intermediate product 11
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-((R)-2-(4-amino-3,5-dibromo-phenyl)-1-{2-[(1-methyl-piperidin-4-
ylmethyl)-amino]-phenylcarbamoyl}-ethyl)-amide
The intermediate product was obtained analogously to intermediate product 1
starting from (R)-3-(4-amino-3,5-dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid
and N-(1-methyl-piperidin-4-ylmethyl)-benzene-1,2-diamine (Intermediate
product 17).
Intermediate product 12
tent. Butyl [(R)-2-(4-amino-3,5-dibromo-phenyl)-1-(2-oxo-2-phenyl-
ethylcarbamoyl)-ethyl]-carbaminate
0.92 g (4.8 mmol) 1-(3-dimethylaminpropyl)-3-ethylcarbodiimid-hydrochloride
and 0.822 mL (4.8 mmol) Hunig base were added to an ice-cooled mixture of
1.752 g (4.0 mmol) (R)-3-(4-amino-3,5-dibromo-phenyl)-2-tert.-
butoxycarbonylamino-propionic acid, 0.8 g (4.7 mmol) 2-amino-1-phenyl-
ethanone-hydrochloride and 50 mL dichloromethane. The reaction mixture
was stirred for 1 week at RT, combined with sat. aqueous sodium bicarbonate
solution and repeatedly extracted with dichloromethane. The combined
organic extracts were washed with water, sat. aqueous NaCI solution and
dried over magnesium sulphate. After evaporation of the solvent 2.35 g of a
solid was obtained which was purified by column chromatography on silica gel
using petroleum ether / EtOAc. 0.54 g (24% of theory) pale yellow crystals
were obtained.
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ESI-MS: (M-H)' = 552 /554 / 556 (Br2)
Intermediate product 13
tent. Butyl {(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[1-(3-dimethylamino-propyl)-
5-phenyl-1 H-imidazol-2-yl]-ethyl}-carbaminate
A mixture of 3.37 g (6.1 mmol) tert. butyl [(R)-2-(4-amino-3,5-dibromo-phenyl)-
1-(2-oxo-2-phenyl-ethylcarbamoyl)-ethyl]-carbaminate (Intermediate product
12), 2.17 g (21.2 mmol) 3-dimethylamino-1-propylamine and 35 mL xylene
was combined with 3.5 mL (61.2 mmol) HOAc and refluxed for 50 minutes
using a water separator. After the addition of a further 2.17 g (21.2 mmol) 3-
dimethylamino-1-propylamine and 3.5 mL (61.2 mmol) HOAc the mixture was
refluxed for a further 50 minutes using the water separator and the reaction
mixture was combined with EtOAc and 30 mL sat. aqueous sodium carbonate
solution. The organic phase was separated off, washed with sat. aqueous
NaCI solution, dried over magnesium sulphate and concentrated by
evaporation i. vac. The residue was purified by column chromatography on
silica gel using petroleum ether / EtOAc (1/1 v/v) and dichloromethane /
MeOH (9/1 v/v). 0.54 g (14% of theory) of the desired product was obtained.
ESI-MS: (M-H)' = 619/ 621/ 623 (Br2)
Intermediate product 14
Methyl 3-((R)-3-(4-amino-3,5-dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-
1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionylamino)-4-(3-
pyrrolidin-1-yl-propylamino)-benzoate
To a solution of 800 mg (1.313 mmol) (R)-3-(4-amino-3,5-dibromo-phenyl)-2-
~[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-
amino}-propionic acid in 70 mL DMF was added at RT 450 mg (1.401 mmol)
TBTU and 0.245 mL (1.406 mmol) Hunig base and the mixture was stirred for
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30 minutes at RT. 370 mg (1.334 mmol) methyl 3-amino-4-(3-pyrrolidin-1-yl-
propylamino)-benzoate (Intermediate product 26) was added and the mixture
was stirred for 16 hours at RT. The solvent was evaporated i. vac., the
residue was combined with 15% aqueous potassium carbonate solution. The
precipitate formed was filtered off and dried i. vac..
Yield: 1.10 g (96% of theory)
Rf = 0.22 (silica gel, dichloromethane I MeOH / cyclohexane I conc. aqueous
ammonia 70 / 15 / 15 / 2 v/v/v/v)
ESI-MS: (M-H)- = 867/869/871 (Br2)
Intermediate products 15
N-(3-Pyrrolidin-1-yl-propyl)-benzene-1,2-diamine
To a solution of 3.700 g (28.857 mmol) 3-pyrrolidin-1-yl-propylamine and
4.000 g (28.941 mmol) potassium carbonate in 20 mL DMF, 1-fluoro-2-nitro-
benzene was added dropwise and the mixture was stirred for 16 hours at RT.
The reaction mixture was filtered through basic Alox and evaporated i. vac..
The residue was dissolved in EtOAc, the org. phase was washed with water,
dried over sodium sulphate and evaporated i. vac.. The crude product was
used in the next reaction step without any further purification (7.080 g,
quantitative yield).
The crude product was added to a suspension of 0.700 g Pd/C (10%) in 50
mL THF and the mixture was hydrogenated at 50 °C and 3 bar H2-pressure
for 1.5 hours. The catalyst was removed by filtration and the filtrate
evaporated i. vac. and stored under argon at -20 °C.
Yield: 6.08 g (99% of theory)
Rf = 0.68 (silica gel, petroleum ether / EtOAc 4 / 1 v/v)
ESI-MS: (M+H)+ = 250
Intermediate product 16
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N-Pyridin-3-ylmethyl-benzene-1,2-diamine
The product was obtained analogously to intermediate product 15 starting
from C-pyridin-3-yl-methylamine and 1-fluoro-2-nitro-benzene. The
hydrogenation was carried out with Raney nickel at 50 °C and 3 bar H2-
pressure in 4 hours.
Yield: 71 % of theory
ESI-MS: (M+H)+ = 200
Intermediate product 17
N-(1-Methyl-piperidin-4-ylmethyl)-benzene-1,2-diamine
The product was obtained analogously to intermediate product 15 starting
from C-(1-methyl-piperidin-4-yl)-methylamine and 1-fluoro-2-nitro-benzene.
Yield: 86% of theory
Rf = 0.09 (Alox, dichloromethane / MeOH / conc. aqueous ammonia 90 / 10
1 v/v/v)
ESI-MS: (M+H)+ = 220
Intermediate product 18
N-(4-Dimethylamino-butyl)-benzene-1,2-diamine
The product was obtained analogously to intermediate product 15 starting
from N-(4-dimethylamino-butyl)-benzene-1,2-diamine and 1-fluoro-2-nitro-
benzene.
Yield: 97% of theory
Rf = 0.09 (silica gel, dichloromethane / MeOH I conc. aqueous ammonia 90 I
/ 1 v/v/v)
ESI-MS: (M+H)+ = 208
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Intermediate product 19
N-(1-Methyl-piperidin-4-yl)-benzene-1,2-diamine
The product was obtained analogously to intermediate product 15 starting
from 1-methyl-piperidin-4-ylamine and 1-fluoro-2-nitro-benzene.
Yield: 96% of theory
Rf = 0.08 (silica gel, dichloromethane / MeOH I conc. aqueous ammonia 90 I
/ 1 v/v/v)
ESI-MS: (M+H)+ = 206
Intermediate ~~roduct 20
N-(5-Dimethylamino-pentyl)-benzene-1,2-diamine
The product was obtained analogously to intermediate product 15 starting
from N-(4-dimethylamino-pentyl)-benzene-1,2-diamine and 1-fluoro-2-nitro-
benzene.
Yield: 97% of theory
Rf = 0.05 (silica gel, dichloromethane / MeOH / conc. aqueous ammonia 90 /
10 / 1 v/v/v)
ESI-MS: (M+H)+ = 222
Intermediate product 21
Methyl- 4-(2-amino-phenylamino)-butyrate
The product was obtained analogously to intermediate product 15 starting
from methyl- 4-aminobutyrate -hydrochloride and 1-fluoro-2-nitro-benzene.
Yield: 80% of theory
Rf = 0.74 (silica gel, dichloromethane / MeOH / conc. aqueous ammonia 90 /
10 / 1 v/v/v)
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ESI-MS: (M+H)+ = 209
Intermediate product 22
4-Chloro-N2-(3-dimethylamino-propyl)-benzene-1,2-diamine
To a solution of 3.500 mL (27.814 mmol) N1,N1-dimethyl-propane-1,3-
diamine and 4.000 g (28.941 mmol) potassium carbonate in 40 mL DMF was
added 4.800g (27.343 mmol) 2,5-difluoro-1-nitro-benzene and the mixture
was stirred for 16 hours at RT. The reaction mixture was filtered through
basic
Alox and evaporated down i. vac.. The residue was dissolved in EtOAc, the
org. phase washed with water, dried over sodium sulphate and evaporated i.
vac.. The crude product was used in the next reaction step without any further
purification (6.900 g, 98% of theory).
The crude product was added to a suspension of 0.700 g Raney nickel in 50
mL THF and the mixture was hydrogenated at 50 °C and 50 psi H2-pressure
for 2 hours. The catalyst was filtered off and the filtrate evaporated down i.
vac. and stored under argon at -20 °C.
Yield: quantitative
Rf = 0.25 (silica gel, dichloromethane / MeOH / conc. aqueous ammonia 90 /
/ 1 v/v/v)
ESI-MS: (M+H)+ = 228/230 (CI)
Intermediate product 23
N2-(3-Dimethylamino-propyl)-4-fluoro-benzene-1,2-diamine
The product was obtained analogously to intermediate product 22 starting
from N1,N1-dimethyl-propane-1,3-diamine and 2,4-difluoro-1-nitro-benzene.
Yield: 81 % of theory
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Rf = 0.13 (silica gel, dichloromethane / MeOH / conc. aqueous ammonia 90
/ 1 v/v/v)
ESI-MS: (M+H)+ = 212 (CI)
Intermediate product 24
N1-(3-Dimethylamino-propyl)-4-fluoro-benzene-1,2-diamine
The product was obtained analogously to intermediate product 22 starting
from N1,N1-dimethyl-propane-1,3-diamine and 2,5-difluoro-1-nitro-benzene.
Yield: 97% of theory
Rf = 0.13 (silica gel, dichloromethane / MeOH / conc. aqueous ammonia 90 /
10 / 1 v/v/v)
ESI-MS: (M+H)+ = 212
Intermediate product 25
4,5-Dichloro-N-(3-dimethylamino-propyl)-benzene-1,2-diamine
The product was obtained analogously to intermediate product 22 starting
from N1,N1-dimethyl-propane-1,3-diamine and 4,5-dichloro-2-fluoro-
phenylamine.
Yield: quantitative
Rf = 0.21 (silica gel, dichloromethane / MeOH / conc. aqueous ammonia 90
10 / 1 v/v/v)
ESI-MS: (M+H)+ = 262/264/266 (C12)
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Intermediate product 26
Methyl-3-amino-4-(3-pyrrolidin-1-yl-propylamino)-benzoate
The product was obtained analogously to intermediate product 22 starting
from 3-pyrrolidin-1-yl-propylamine and methyl-4-fluoro-3-nitro-benzoate.
Yield: 79% of theory
Rf = 0.21 (silica gel, dichloromethane / MeOH / conc. aqueous ammonia 90 /
/ 1 v/v/v)
ESI-MS: (M+H)+ = 278
Intermediate product 27
3-Chloro-N2-(3-dimethylamino-propyl)-benzene-1,2-diamine
The product was obtained analogously to intermediate product 22 starting
from N1,N1-dimethyl-propane-1,3-diamine and 1-chloro-2-fluoro-3-nitro-
benzene.
Yield: 98% of theory
Rf = 0.29 (silica gel, dichloromethane / MeOH / conc. aqueous ammonia 90
10 / 1 v/v/v)
ESI-MS: (M+H)+ = 228/230 (CI)
Intermediate product 28
N-(3-Imidazol-1-yl-propyl)-benzene-1,2-diamine-trihydrochloride
The product was obtained analogously to intermediate product 22 starting
from 3-imidazol-1-yl-propylamine and 1-fluoro-2-nitro-benzene and after the
addition of 20 mL of 5 M HCI in isopropanol isolated as the trihydrochloride
salt.
Yield: 98% of theory
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ESI-MS: (M+H)+ = 217
Intermediate product 29
4-(3-Dimethylamino-propyl)-N1-ethyl-benzene-1,2-diamine
To a solution of 2.500 g (9.912 mmol) 3-(4-acetylamino-3-vitro-phenyl)-
propionic acid and 3.400 g (10.589 mmol) TBTU in 50 mL THF was added
4.40 mL (25.007 mmol) Hunig base and the mixture was stirred for 30 minutes
at RT. 1.000 g (12.263 mmol) dimethylamine-hydrochloride was added and
the mixture was stirred for a further 16 hours at RT. The reaction mixture was
evaporated i. vac., the residue combined with 15% aqueous potassium
carbonate solution and exhaustively extracted with dichloromethane. The
combined org. phases were dried over sodium sulphate and evaporated i.
vac.. The crude product was purified by column chromatography (silica gel,
dichloromethane I MeOH / conc. aqueous ammonia 90 I 10 I 3 v/v/v) (2.600 g,
94% of theory).
The intermediate product was dissolved in 50 mL THF, 10.00 mL (78.821
mmol) trichlorosilane was added dropwise at RT and the suspension was
stirred for 30 minutes. 1.400 g (61.009 mmol) lithium borohydride was added
batchwise and the mixture was stirred for 1 hour at RT and refluxed for 2
hours. 10 mL semiconc. HCI in 40 mL water was slowly added dropwise and
the mixture was refluxed for another hour. The mixture was left to stand for
16
hours, combined with EtOAc and stirred vigorously. The org. phase was
separated off, the aqueous phase was made basic with conc. aqueous
ammonia and exhaustively extracted with EtOAc. The combined org. extracts
were dried over magnesium sulphate and evaporated i. vac.. The residue was
purified by column chromatography (silica gel, dichloromethane / MeOH /
conc. aqueous ammonia 90 / 10 / 3 v/v/v).
Yield: 0.350 g (16% of theory)
Rf = 0.49 (silica gel, dichloromethane / cyclohexane / MeOH / conc. aqueous
ammonia 70 / 15 / 15 / 1 v/v/v/v)
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EI-MS: M+ = 221
Intermediate product 30
4-(2-Amino-phenylamino)-butan-1-of
The product was obtained analogously to intermediate product 22 starting
from 4-amino-butanol and 1-fluoro-2-nitro-benzene and after the addition of
20 mL of 5 M HCI in isopropanol, isolated as the dihydrochloride salt.
Yield: 73% of theory
R, = 0.49 (silica gel, dichloromethane / MeOH 50 / 1 v/v)
ESI-MS: (M+H)+ = 211
Intermediate product 31
N-(1-Methyl-piperidin-3-ylmethyl)-benzene-1,2-diamine
The product was obtained analogously to intermediate product 22 starting
from C-(1-methyl-piperidin-3-yl)-methylamine and 1-fluoro-2-nitro-benzene
and after the addition of 3 mL of 5 M HCI in isopropanol isolated as the
trihydrochloride salt.
Yield: 19% of theory
Rf = 0.70 (Alox, dichloromethane / MeOH 50 / 1 v/v)
ESI-MS: (M+H)+ = 220
Intermediate product 32
N-[2-(4-Methyl-piperazin-1-yl)-ethyl]-benzene-1,2-diamine
The product was obtained analogously to intermediate product 22 starting
from 2-(4-methyl-piperazin-1-yl)-ethylamine and 1-fluoro-2-nitro-benzene and
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after the addition of 15 mL of 5 M HCI in isopropanol isolated as the
trihydrochloride salt.
Yield: 72% of theory
ESI-MS: (M+H)+ = 235
Intermediate product 33
N-Pyridin-4-ylmethyl-benzene-1,2-diamine
4.000 g (24.380 mmol) 4-chloromethyl-pyridine-hydrochloride and 8.000 g
(44.180 mmol) benzene-1,2-diamine was added at RT to a suspension of
7.000 g (50.650 mmol) potassium carbonate in 80 mL DMF and the mixture
was stirred for 48 hours at RT. The reaction mixture was evaporated i. vac.,
100 mL water was added and the resulting mixture was exhaustively
extracted with EtOAc. The combined org. phases were dried over sodium
sulphate and evaporated down i. vac.. The crude product was purified by
column chromatography (silica gel, Gradient EtOAc / MeOH 10:0 -~ 10:1 v/v).
The product was isolated as the trihydrochloride salt by dissolving in MeOH,
adding 4 mL of 5 M HCI in isopropanol and drying i. vac..
Yield: 2.320g (31 % of theory)
ESI-MS: (M+H)+ = 200
Intermediate product 34
tent. Butyl- 4-[(2-amino-phenylamino)-methyl]-piperidin-1-carboxylate
The product was obtained analogously to intermediate product 22 starting
from tert. butyl-4-aminomethyl-piperidin-1-carboxylate and 1-fluoro-2-nitro-
benzene.
Yield: 88% of theory
Rf = 0.51 (Alox, petroleum ether / EtOAc 1 / 1 v/v)
ESI-MS: (M+H)+ = 306
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Intermediate product 35
3-{1-[4-(4-Amino-3-chloro-5-trifluoromethyl-phenyl)-3-hydroxymethyl-butyryl]-
piperidin-4-yl}-1,3,4,5-tetrahydro-1,3-benzodiazepin-2-one
To a solution of 3.00 g (5.425 mmol) 2-(4-amino-3-chloro-5-trifluoromethyl-
benzyl)-4-oxo-4-[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-
piperidin-1-yl]-butyric acid (Intermediate product 68) in 100 mL THF was
added 1.054 g (6.500 mmol) CDI and the mixture was stirred for 2 hours at
RT. This solution was added dropwise under a nitrogen atmosphere over 5
minutes to an ice-cooled solution of 0.728 g (19.250 mmol) sodium
borohydride in 50 mL water and the mixture was stirred for 16 hours at RT.
The reaction mixture was acidified with 1 N aqueous HCI to pH 2 and
exhaustively extracted with EtOAc. The combined org. phases were washed
with sat. aqueous NaCI solution, dried over sodium sulphate and evaporated i.
vac..
Yield: 2.900 g (quantitative)
ESI-MS: (M+H)+ = 539/541 (CI).
Intermediate product 36
2-(4-Amino-3-chloro-5-trifluoromethyl-benzyl)-4-oxo-4-[4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-yl]-butyraldehyde
To a solution of 0.539 g (1.000 mmol) 3-{1-[4-(4-amino-3-chloro-5-
trifluoromethyl-phenyl)-3-hydroxymethyl-butyryl]-piperidin-4-yl}-1,3,4,5-
tetrahydro-1,3-benzodiazepin-2-one (Intermediate product 35) in 10 mL
dichloromethane was added 0.933 g (2.200 mmol) Dess-Martin-Periodinane
and the mixture was stirred for 3 hours at RT. The reaction mixture was
washed with sat. aqueous sodium thiosulphate solution and sat. aqueous
NaCI solution, dried over sodium sulphate and evaporated down i. vac.. The
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crude product was purified by column chromatography (silica gel, gradient
dichloromethane / MeOH 50:1 -~ 25:1 v/v).
Yield: 0.320 g (60% of theory)
ESI-MS: (M+H)+ = 537/539 (CI).
Intermediate product 37
Dimethylamino-2,2-dimethyl-propyl)-benzene-1,2-diamine
The product was obtained analogously to intermediate product 22 starting
from 2,2,N1,N1-tetramethyl-propan-1,3-diamine and 1-fluoro-2-nitro-benzene
and after the addition of 25 mL of 5 M HCI in isopropanol isolated as the
trihydrochloride salt.
Yield: 89% of theory
ESI-MS: (M+H)+ = 222
Intermediate product 38
3-(3-Dimethylamino-propoxy)-benzene-1,2-diamine
The product was obtained analogously to intermediate product 22 starting
from (3-chloro-propyl)-dimethyl-amine and 2-amino-3-nitro-phenol and after
the addition of 5 mL of 5 M HCI in isopropanol isolated as the
trihydrochloride
salt.
Yield: 74% of theory
ESI-MS: (M+H)+ = 210
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Intermediate product 39
N-(3-Diethylamino-propyl)-benzene-1,2-diamine
The product was obtained analogously to intermediate product 22 starting
from N1,N1-diethyl-propane-1,3-diamine and 1-fluoro-2-vitro-benzene and
after the addition of 28 mL of 5 M HCI in isopropanol isolated as the
trihydrochloride salt.
Yield: 96% of theory
ESI-MS: (M+H)+ = 222
Intermediate product 40
tert. Butyl-4-[(3-amino-pyridin-4-ylamino)-methyl]-piperidin-1-carboxylate
A solution of 643 mg (3.00 mmol) tert. butyl-4-aminomethyl-piperidin-1-
carboxylate and 471 mg (3.00 mmol) 4-methoxy-3-vitro-pyridine in 5 mL
MeOH was refluxed for 2 hours and then evaporated down i. vac.. The crude
product was purified by column chromatography (silica gel, gradient
dichloromethane / MeOH 100:0 -~ 19:1 v/v) (Yield: 1.010 g, quantitative).
The intermediate product was added to a suspension of 500 mg Raney nickel
in 30 mL MeOH and the mixture was hydrogenated for 6 hours at 50 °C and
50 psi H2-pressure. The catalyst was filtered off and the filtrate evaporated
i.
vac.. The crude product was purified by column chromatography (Alox
(neutral, activity II-III), Gradient dichloromethane / MeOH 99:1 -~ 19:1 v/v)
purified.
Yield: 0.480 g (53% of theory)
Rf = 0.15 (silica gel, dichloromethane I MeOH 19 I 1 vlv)
ESI-MS: (M+H)+ = 307
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Intermediate product 41
N3-(3-Pyrrolidin-1-yl-propyl)-pyridine-3,4-diamine
1.300 g (5.940 mmol) 3-bromo-4-nitro-pyridine-1-oxide and 0.980 g (7.430
mmol) 3-pyrrolidin-1-yl-propylamine was added to a suspension of 0.820 g
(5.940 mmol) potassium carbonate in 20 mL DMF and the mixture was stirred
for 3 hours at 90°C. The solvent was evaporated i. vac. and the residue
purified by column chromatography (Alox (neutral, activity II-III), gradient
dichloromethane / MeOH 100:0 ~ 95:5 v/v) (0.950 g, 60% of theory).
0.900 g (3.380 mmol) of the intermediate product was added to a suspension
of 300 mg Pd/C in 10 mL EtOH and the mixture was hydrogenated for 4.5
hours at RT and 50 psi H2-pressure. The catalyst was removed by filtration
and the filtrate evaporated i. vac.. The product is present in admixture with
the
corresponding pyridine-N-oxide and was used in the next reaction step
without any further purification.
Yield: 35% of theory
ESI-MS: (M+H)+ = 221
Intermediate product 42
N2-Methyl-4-pyrrolidin-1-ylmethyl-benzene-1,2-diamine
To a solution of 0.700 g (3.569 mmol) 3-methylamino-4-nitro-benzoic acid and
0.58 mL (7.000 mmol) pyrrolidine in 40 mL THF was added 1.156 g (3.600
mmol) TBTU and the mixture was stirred for 3 hours at RT. The reaction
mixture was diluted with EtOAc, the org. phase was washed with semisat.
aqueous sodium bicarbonate solution, dried over magnesium sulphate and
evaporated i. vac. (0.700 g, 79% of theory).
Under a nitrogen atmosphere a solution of the intermediate product in 15 mL
THF was slowly added dropwise to a suspension of 76 mg (2.000 mmol)
lithium aluminium hydride in 15 mL THF and the mixture was refluxed for 16
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hours. After cooling another 35 mg lithium aluminium hydride were added and
the mixture was refluxed for a further 8 hours. Excess lithium aluminium
hydride was decomposed by the Fieser method with water and aqueous
NaOH solution and filtered off. The filtrate was diluted with EtOAc, the org.
phase was washed with sat. aqueous NaCI solution, dried over magnesium
sulphate and evaporated i. vac.. The crude product was purified by column
chromatography (silica gel, gradient dichloromethane / MeOH / sat. aqueous
ammonia 100:0:0 -~ 90:10:1 v/v/v).
Yield: 60 mg (21 % of theory)
Rf = 0.20 (silica gel, dichloromethane I MeOH / sat. aqueous ammonia 90 I 10
/ 1 v/v/v)
ESI-MS: (M+H)+ = 206
Intermediate product 43
Ethyl-2-amino-3-(3,4-dibromo-phenyl)-propionate
10.69 g (40.00 mmol) Ethyl-(benzhydrylidene-amino)-acetate, 1.87 g (5.80
mmol) tetrabutylammonium bromide and 20.00 g (45.12 mmol) of 1,2-
dibromo-4-bromomethyl-benzene were added to a suspension of 14.00 g
(101.30 mmol) potassium carbonate in 300 mL acetonitrile and 2.7 mL water
and the mixture was refluxed for 20 hours. The reaction mixture was cooled,
filtered and the filtrate evaporated i. vac.. The residue was taken up in 120
mL
ether, combined with semiconc. aqueous HCI and the mixture was stirred
vigorously for 1 hour. The ethereal phase was separated off and the aqueous
phase washed with ether. The aqueous phase was neutralised with sat.
aqueous sodium bicarbonate solution and exhaustively extracted with EtOAc.
The combined org. extracts were dried over sodium sulphate and evaporated
down i. vac.. The crude product was purified by column chromatography
(silica gel, EtOAc).
Yield: 8.27 g (59% of theory)
Rf = 0.59 (silica gel, EtOAc)
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Intermediate product 44
Ethyl 3-(3,4-dibromo-phenyl)-2-[4-(2-oxo-1,2,4,5-tetrahydro-1, 3-
benzodiazepin-3-yl)-piperidin-1-yl]-propionate
A solution of 8.27 g (23.56 mmol) ethyl 2-amino-3-(3,4-dibromo-phenyl)-
propionate (Intermediate product 43) in 30 mL DMF was slowly added
dropwise to a solution of 4.20 g (24.31 mmol) CDT in 50 mL DMF at 0 °C
and
the mixture was stirred for 30 minutes at 0 °C and for 30 minutes at
RT. 5.90
g (24.05 mmol) 3-Piperidin-4-yl-1,3,4,5-tetrahydro-1,3-benzodiazepin-2-one
was added and the mixture was stirred for 16 hours at RT. The reaction
mixture was poured onto 250 mL ice water, 150 mL EtOAc was added and
stirred vigorously for 1 hour. The precipitate formed was filtered off and
dried
in the air.
Yield: 10.20 g (68% of theory)
Rf = 0.45 (silica gel, EtOAc)
Intermediate product 45
3-(3,4-Dibromo-phenyl)-2-[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-
yl)-piperidin-1-yl]-propionic acid
To a solution of 11.62 g (18.67 mmol) ethyl 3-(3,4-dibromo-phenyl)-2-[4-(2-
oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-yl]-propionate
(Intermediate product 44) in 100 mL EtOH was added a solution of 5.00 g
(125.00 mmol) sodium hydroxide in 50 mL water and the mixture was refluxed
for 1 hour. Ethanol was evaporated i. vac. and the residue was diluted with
50 mL water. 65 mL of 2 M aqueous HCI was slowly added dropwise, the
precipitate formed was filtered off and dried i. vac..
Yield: 11.09 g (quantitative yield)
ESI-MS: (M-H)- = 591/593/595 (Br2)
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Intermediate product 46
Diethyl 2-acetylamino-2-(3,4-diethyl-benzyl)-malonate
Under a nitrogen atmosphere 8.14 g (354 mmol) of sodium was added in
batches to 200 mL abs. EtOH and stirred until fully dissolved. 76.9 g (354
mmol) diethyl 2-acetylaminomalonate was then added to this solution,
whereupon the sodium salt formed was precipitated. After the addition of 150
mL 1,4-dioxane a solution of 80 g (352 mmol) of 4-bromomethyl-1,2-diethyl-
benzene in 500 mL of 1,4-dioxane was added dropwise to this suspension.
The reaction solution was kept at 50°C for 2 hours and then stirred
for 16
hours at RT. The solvent was distilled off i. vac., the oily residue was
combined with water, while the product was obtained in the form of white
crystals. These were suction filtered, washed with water and reacted without
any further purification.
Rf = 0.35 (silica gel, petroleum ether / EtOAc 2 / 1 v/v)
Intermediate product 47
2-Amino-3-(3,4-diethyl-phenyl)-propionic acid
The crude Intermediate product 46 was dissolved in 250 mL AcOH and
combined with 250 mL conc. aqueous HCI and 150 mL water. The reaction
solution was refluxed for 3 hours, the solvents were evaporated i. vac., the
residue taken up in EtOH, the precipitate formed was suction filtered and
washed with diethyl ether.
Yield: 45 g (57% of theory)
Rf = 0.35 (silica gel, EtOAc / MeOH / AcOH 90 / 10 / 3 v/v/v)
ESI-MS: (M+H)+ = 222
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Intermediate product 48
Methyl-2-amino-3-(3,4-diethyl-phenyl)-propionate
41 g (159 mmol) 2-Amino-3-(3,4-diethyl-phenyl)-propionic acid (Intermediate
product 47) was combined with 300 mL HCI-sat. MeOH and left to stand for
16 hours at RT, during which time the desired hydrochloride was precipitated.
The mixture was heated to 50°C, whereupon HCI was given off and
the
product went back into solution. The solution was evaporated down i. vac. to
1/3 of its original volume, the product precipitated was stirred with ether,
suction filtered and washed twice with ether. The crude product was reacted
without any further purification.
Yield: 42 g (97% of theory)
Rf = 0.7 (silica gel, MeOH)
ESI-MS: (M+H)+ = 236
Intermediate product 49
Methyl-3-(3,4-diethyl-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-
benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionate
7.4 g (45 mmol) of CDT was added to a solution of 10.5 g (44.6 mmol) methyl-
2-amino-3-(3,4-diethyl-phenyl)-propionate (Intermediate product 48) in 250
mL THF cooled to 0°C and the resulting mixture was stirred for a
further 30
minutes at this temperature. Then 10.9 g (44.6 mmol) 3-piperidin-4-yl-1,3,4,5-
tetrahydro-1,3-benzodiazepin-2-one was added, while the reaction solution
was kept at this temperature for a further 20 minutes, before being refluxed
for
30 minutes. The solvent was eliminated in vacuo, the residue was taken up in
sat. sodium bicarbonate solution, exhaustively extracted with ether / EtOAc
(1:1) and dried over magnesium sulphate. After removal of the drying agent
and solvent the crude product was reacted without any further purification.
Yield: quantitative
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Rf = 0.6 (silica gel, EtOAc / petroleum ether 6 / 4 v/v)
Intermediate product 50
3-(3,4-Diethyl-phenyl)-2-{(4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-
piperidin-1-carbonyl]-amino}-propionic acid
26 g of the crude intermediate product 49 was dissolved in 200 mL EtOH,
combined with 2.3 g (55 mmol) lithium hydroxide and stirred for16 hours. The
reaction solution was evaporated down i, vac., the residue taken up with
water, extracted with ether, acidified with 15% aqueous citric acid solution
and
exhaustively extracted with EtOAc. The combined org. phases were dried
over magnesium sulphate and after removal of the drying agent and solvent
reacted without any further purification.
Yield: 19 g (75% of theory)
Rf = 0.1 (silica gel, EtOAc / petroleum ether 6 / 4 v/v)
Intermediate product 51
Ethyl 2-amino-3-(3,5-bis-trifiuoromethyl-phenyl)-propionate
The intermediate product was obtained analogously to intermediate product
43 starting from ethyl (benzhydrylidene-amino)-acetate and 1-bromomethyl-
3,5-bis-trifluoromethyl-benzene as the hydrochloride salt.
Yield: 91 % of theory
ESI-MS: (M+H)+ = 330
Intermediate product 52
Ethyl 3-(3,5-bis-trifluoromethyl-phenyl)-2-f [4-(2-oxo-1,2,4,5-tetrahydro-1,3-
benzodiazepin-3-yl)-piperidine-1-carbonyl]-amino}-propionate
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The intermediate product was obtained analogously to intermediate product
44 starting from ethyl 2-amino-3-(3,5-bis-trifluoromethyl-phenyl)-propionate
(Intermediate product 51 ), 1 equivalent Hunig base and 3-piperidin-4-yl-
1,3,4,5-tetrahydro-1,3-benzodiazepin-2-one. The crude product was purified
by column chromatography (silica gel, EtOAc / cyclohexane 4/ 1 v/v) purified.
Yield: 19% of theory
Rf = 0.63 (silica gel, EtOAc)
ESI-MS: (M+H)+ = 601
Intermediate,product 53
3-(3, 5-Bis-trifluoromethyl-phenyl)-2-f [4-(2-oxo-1,2,4,5-tetrahydro-1,3-
benzodiazepin-3-yl)-piperidine-1-carbonyl]-amino}-propionic acid
The intermediate product was obtained analogously to intermediate product
45 starting from ethyl 3-(3,5-bis-trifluoromethyl-phenyl)-2-{[4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidine-1-carbonyl]-amino}-propionate
(Intermediate product 52).
Yield: quantitative
ESI-MS: (M+H)+ = 573
Intermediate~roduct 54
(4-Amino-3-chloro-5-trifluoromethyl-phenyl)-methanol
To a solution of 10.0 g (41.7 mmol) 4-amino-3-chloro-5-trifluoromethyl-
benzoic acid (Arzneim. Forsch. 1984, 1612-1624.) in 100 mL THF was added
7.13 g (44.0 mmol) CDI and the mixture was stirred at 40 °C until the
development of gas had ended. While cooling 4.64 g (120 mmol) sodium
borohydride was added to 300 mL water and the mixture was then stirred for
2 hours at RT. The reaction mixture was acidified with 10% aqueous HCI,
stirred for 1 hour, neutralised with sat. aqueous sodium bicarbonate solution
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and exhaustively extracted with EtOAc. The combined org. extracts were
washed with sat. aqueous sodium bicarbonate solution, dried over sodium
sulphate and evaporated down i. vac.. Column chromatography (silica gel,
gradient dichloromethane / MeOH / conc. aqueous ammonia 100/0/0 -~
87/10/3 v/v/v) yielded the product.
Yield: 5.4 g (57% of theory)
Intermediate product 55
2-Chloro-4-chlormethyl-6-trifluoromethyl-phenylamine
To a solution of 1.00 g (4.43 mmol) (4-amino-3-chloro-5-trifluoromethyl-
phenyl)-methanol (Intermediate product 54) in 50 mL dichloromethane was
added at RT 0.94 mL (13.00 mmol) thionyl chloride and the mixture was
stirred for 3 hours at RT. The reaction mixture was poured onto ice and the
aqueous phase exhaustively extracted with dichloromethane. The combined
org. phases were washed with ice-cold sodium bicarbonate solution, dried
over sodium sulphate, filtered through activated charcoal and evaporated
down i, vac.. The crude product was used in the next reaction step without
any further purification.
Yield: 1.08 g (quantitative yield)
EI-MS: M+ = 243/245/247 (C12)
Rf = 0.81 (silica gel, petroleum ether / EtOAc 2/1 v/v/)
Intermediate product 56
Diethyl 2-acetylamino-2-(4-amino-3-chloro-5-trifluoromethyl-benzyl)-malonate
24.11 g (0.11 mol) diethyl 2-acetylamino-malonate was added to a freshly
prepared solution of 2.55 g (0.11 mol) sodium in 200 mL abs. EtOH under a
nitrogen atmosphere and the mixture was stirred for 15 minutes at RT. A
solution of 27.00 g (0.11 mol) 2-chloro-4-chlormethyl-6-trifluoromethyl-phenyl-
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amine (Intermediate product 55) in 100 mL 1,4-dioxane was rapidly added
dropwise and the mixture was stirred for 4 hours at RT. 500 mL water were
added and the mixture was stirred for a further 16 hours. The precipitate
formed was filtered off, washed with water and dried i. vac..
Yield: 40.0 g (84% of theory)
Rf = 0.14 (silica gel, petroleum ether / EtOAc 2 / 1 v/v)
Intermediate product 57
2-Amino-3-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-propionic acid-
hydrochloride
To a solution of 40.0 g (94.16 mmol) diethyl 2-acetylamino-2-(4-amino-3-
chloro-5-trifluoromethyl-benzyl)-malonate (Intermediate product 56) in 110 mL
AcOH and 150 mL water was added 50 mL conc. aqueous HCI and the
reaction mixture was heated to140 °C for 4 hours. The precipitate
formed was
filtered off and discarded. The filtrate was evaporated i. vac., combined with
100 mL EtOH and stirred for 15 minutes at RT. The precipitate formed was
filtered off, washed with EtOH and dried i. vac.. The crude product was used
in the next reaction step without any further purification.
Yield: 16 g (53% of theory)
ESI-MS: (M-H)- = 281 / 283 (CI)
Intermediate~roduct 58
Ethyl 2-amino-3-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-propionate
16 g (50.14 mmol) 2-amino-3-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-
propionic acid-hydrochloride (Intermediate product 57) were dissolved in 350
mL HCI (12 M in EtOH) and stirred for 5 hours at RT. The reaction mixture
was evaporated to 100 mL i. vac. and combined with 200 mL ether. The
precipitate formed was filtered off, washed with ether and dried i. vac..
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Yield: 12.2 g (70% of theory)
ESI-MS: (M+H)+ = 311 / 313 (CI)
Intermediateproduct 59
Ethyl 3-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-2-{[4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionate
4.15 g (23.04 mmol) CDT was added to a suspension of 8.00 g (23.04 mmol)
ethyl 2-amino-3-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-propionate
(Intermediate product 58) and 16.0 mL (115.00 mmol) triethylamine in 100 mL
DMF at 0 °C and the mixture was stirred for 1.5 hours at 0 °C.
A solution of
5.64 g (23.00 mmol) 3-piperidin-4-yl-1,3,4,5-tetrahydro-1,3-benzodiazepin-2-
one in 200 mL DMF was added and the mixture was heated to 100 °C for 2
hours. The reaction mixture was cooled to RT, diluted with 1.5 L water and
stirred for a further 10 minutes. The precipitate formed was filtered off,
washed with water and dried i. vac..
Yield: 13.0 g (97% of theory)
ESI-MS: (M+H)+ = 582 / 584 (CI)
Intermediate product 60
3-(4-Amino-3-chloro-5-trifluoromethyl-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-
1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid
To a solution of 13.00 g (22.34 mmol) ethyl 3-(4-amino-3-chloro-5-
trifluoromethyl-phenyl)-2- f [4-(2-oxo-1,2,4,5-tetrahydro-1, 3-benzodiazepin-3-
yl)-piperidin-1-carbonyl]-amino}-propionate (Intermediate product 59) in 100
mL EtOH was added 45 mL aqueous NaOH (1 M) and the mixture was stirred
for 16 hours at RT. EtOH was evaporated i. vac., 45 mL aqueous HCI (1 M)
was added and 15 minutes stirred. The precipitate formed was filtered off,
washed with water and dried i. vac. at 75 °C.
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Yield: 10.5 g (85% of theory)
ESI-MS: (M-H)' = 552 / 554 (CI)
Intermediate product 61
tent. Butyl-4-(3,4-diethyl-phenyl)-3,3-bis-ethoxycarbonyl-butyrate
To a solution of 14.70 g (53.59 mmol) 1-tert.-butyl-4-ethyl 3-ethoxycarbonyl-
succinate in 100 mL abs. THF was added batchwise under a nitrogen
atmosphere and while cooling with ice 2.40 g (55.00 mmol) NaH (55% in
mineral oil) and the mixture was stirred for 1 hour at RT. 11.00 g (48.43
mmol)
of 4-bromomethyl-1,2-diethyl-benzene, dissolved in 50 mL abs. THF, was
added dropwise and the mixture was stirred for 3 hours at RT. The reaction
mixture was filtered and the filtrate evaporated i. vac.. The residue was
combined with water and the aqueous phase exhaustively extracted with
EtOAc. The org. phase was with washed 1 M aqueous potassium hydrogen
sulphate solution and water, dried over MgS04 and evaporated down i. vac..
The crude product was used in the next reaction step without any further
purification.
Yield: 20.30 g (quantitative yield)
ESI-MS: (M+Na)+ = 423
Rf = 0.48 (eluant: petroleum ether / EtOAc 4 / 1 v/v)
Intermediate product 62
4-(3,4-Diethyl-phenyl)-3,3-bis-ethoxycarbonyl-butyric acid
To a solution of 20.30 g (48.27 mmol) tert. butyl 4-(3,4-diethyl-phenyl)-3,3-
bis-
ethoxycarbonyl-butyrate (Intermediate product 61) in 100 mL CH2C12 was
added 40 mL TFA while cooling with ice and the mixture was refluxed for 1
hour. The reaction mixture was evaporated down i. vac., the residue was
combined with water and the aqueous phase exhaustively extracted with
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EtOAc. The combined org. extracts were washed with sat. aqueous NaCI
solution, dried over sodium sulphate and evaporated i. vac..
Yield: 17.10 g (97% of theory)
ESI-MS: (M-H)- = 363
Intermediate product 63
Diethyl-2-(3,4-diethyl-benzyl)-2-{2-oxo-2-(4-(2-oxo-1,2,4,5-tetrahydro-1,3-
benzodiazepin-3-yl)-piperidin-1-yl]-ethyl}-malonate
10.00 mL (56.83 mmol) of Hunig base was added dropwise to a solution of
17.00 g (46.65 mmol) 4-(3,4-diethyl-phenyl)-3,3-bis-ethoxycarbonyl-butyric
acid (Intermediate product 62), 12.00 g (48.91 mmol) 3-piperidin-4-yl-1,3,4,5-
tetrahydro-1,3-benzodiazepin-2-one, 16.00 g (49.84 mmol) TBTU and 6.50 g
(47.14 mmol) HOBT in 300 mL THF and the mixture was stirred for 5 hours at
RT. The reaction mixture was evaporated i. vac., the residue combined with
sat. aqueous sodium bicarbonate solution and the aqueous phase
exhaustively extracted with dichloromethane. The combined org. extracts
were washed with water, dried over sodium sulphate and evaporated i. vac..
Yield: 14.00 g (51 % of theory)
ESI-MS: (M+H)+ = 592
Intermediate product 64
To a solution of 14.00 g (23.66 mmol) diethyl 2-(3,4-diethyl-benzyl)-2-{2-oxo-
2-[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-yl]-ethyl}-
malonate (Intermediate product 63) in 150 mL EtOH was added 6.30 g (95.62
mmol) KOH, dissolved in 100 mL water, and the mixture was refluxed for 16
hours. EtOH was evaporated off i. vac., the reaction mixture was acidified to
pH 4 with conc. aqueous HCI and 1 hour at RT. The precipitate formed was
filtered off, washed with water and diisopropyl ether and dried i. vac..
Yield: 10.90 g (94% of theory)
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ESI-MS: (M+H)+ = 492
Intermediate product 65
tent. Butyl 4-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-3,3-bis-
ethoxycarbonyl-butyrate
To a solution of 1.20 g (4.43 mmol) 1-fert.butyl-4-ethyl 3-ethoxycarbonyl-
succinate in 50 mL abs. THF was added batchwise under a nitrogen
atmosphere and while cooling with ice 193 mg (4.43 mmol) NaH (55% in
mineral oil) and the mixture was stirred for 1 hour at RT. 1.1 g (4.43 mmol)
of
2-chloro-4-chlormethyl-6-trifluoromethyl-phenylamine, dissolved in 10 mL abs.
THF, was added dropwise and the mixture was stirred for 16 hours at RT. The
reaction mixture was diluted with water and the aqueous phase extracted with
EtOAc. The org. phase was dried over magnesium sulphate and evaporated
down i. vac.. The crude product was used in the next reaction step without
any further purification.
Yield: 2.1 g (98% of theory)
ESI-MS: (M+H)+ = 482/484 (CI)
Rf = 0.48 (silica gel, petroleum ether / EtOAc 4 / 1 v/v)
Intermediate product 66
4-(4-Amino-3-chloro-5-trifluoromethyl-phenyl)-3,3-bis-ethoxycarbonyl-butyric
acid
To a solution of 30.0 g (62.25 mmol) tert. butyl 4-(4-amino-3-chloro-5-
trifluoromethyl-phenyl)-3,3-bis-ethoxycarbonyl-butyrate (Intermediate product
65) in 200 mL CH2CIZ was added 20 mL TFA while cooling with ice and the
mixture was stirred for 16 hours at RT. The reaction mixture was evaporated i.
vac. and the residue recrystallised from petroleum ether. The precipitate was
filtered off, washed with petroleum ether and dried.
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Yield: 23.6 g (89% of theory)
ESI-MS: (M-H)- = 424/426 (CI)
Intermediate product 67
Diethyl-2-(4-amino-3-chloro-5-trifluoromethyl-benzyl)-2-{2-oxo-2-(4-(2-oxo-
1,2,4,5-tetrahydro-1, 3-benzodiazepin-3-yl)-piperidin-1-yl]-ethyl}-malonate
To a solution of 13.00 g (30.53 mmol) 4-(4-amino-3-chloro-5-trifluoromethyl-
phenyl)-3,3-bis-ethoxycarbonyl-butyric acid (Intermediate product 66) and 9.7
mL (70.00 mmol) triethylamine in 70 mL DMF was added at 0 °C 10.60 g
(33.00 mmol) TBTU and the mixture was stirred for 1.5 hours at 0 °C. A
solution of 7.482 g (30.50 mmol) 3-piperidin-4-yl-1,3,4,5-tetrahydro-1,3-
benzodiazepin-2-one in 50 mL DMF was added and the mixture was stirred
for 16 hours at RT. The reaction mixture was evaporated down i. vac. and the
residue was combined with saturated aqueous sodium bicarbonate solution
and EtOAc. The precipitate formed was filtered off, suspended in acetone,
filtered off again, washed with acetone and dried i. vac..
Yield: 17.90 g (90% of theory)
ESI-MS: (M+H)+ = 653/655 (CI)
Intermediate product 68
2-(4-Amino-3-chloro-5-trifluoromethyl-benzyl)-4-oxo-4-[4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-yl]-butyric acid
To a solution of 17.90 g (27.41 mmol) diethyl 2-(4-amino-3-chloro-5-
trifluoromethyl-benzyl)-2-{2-oxo-2-[4-(2-oxo-1,2,4,5-tetrahydro-1,3-
benzodiazepin-3-yl)-piperidin-1-yl]-ethyl}-malonate (Intermediate product 67)
in 1200 mL EtOH was added 5.48 g (137.00 mmol) NaOH in 500 mL water
and the mixture was refluxed for 4 hours. EtOH was evaporated off i. vac. and
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the aqueous phase was acidified to pH 2with conc. aqueous HCI. The
precipitate formed was filtered off, washed with water and dried i. vac..
Yield: 14.80 g (98% of theory)
ESI-MS: (M-H)' = 551/553 (CI)
Preparation of the end compounds:
Example 1
4-(2-Oxo-1,2,4, 5-tetrahydro-1, 3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-f(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[1-(3-dimethylamino-propyl)-1H-
benzimidazol-2-yl]-ethyl}-amide
r h~
11
r
H
1
H
~ ~'CIi3
H
The solution of 1.0 g (1.30 mmol) 4-(2-oxo-1,2,4,5-tetrahydro-1,3-
benzodiazepin-3-yl)-piperidin-1-carboxylic acid-((R)-2-(4-amino-3,5-dibromo-
phenyl)-1-[2-(3-dimethylamino-propylamino)-phenylcarbamoyl]-ethyl}-amide
(Intermediate product 1) in 60 mL 1,4-dioxane was combined with 200 mg of
p-toluenesulphonic acid and refluxed for15 minutes. The solvent was
eliminated i. vac., the residue taken up in water and made alkaline by the
addition of aqueous sodium bicarbonate solution. The precipitate formed was
filtered off, triturated with acetone and dried. 0.35 g (36% of theory) of
colourless crystals were obtained, Rf = 0.55 (silica gel, dichloromethane /
MeOH / cyclohexane / conc. aqueous ammonia 70 / 15 / 15 / 2 v/v/v/v).
ESI-MS: (M+H)+ = 751/753/755 (Br2).
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Example 2
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[1-(2-dimethylamino-ethyl)-1 H-
benzimidazol-2-yl]-ethyl-amide
Br H
I
i I 11
O \ r
N
H N
1
H
HC \
CH3
The product was obtained analogously to Example 1 from 4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic acid-{(R)-2-(4-
amino-3,5-dibromo-phenyl)-1-[2-(2-dimethylamino-ethylamino)-
phenylcarbamoyl]-ethyl}-amide (Intermediate product 2).
Yield: 36% of theory
Rf = 0.55 (silica gel, dichloromethane I MeOH / cyclohexane I conc. aqueous
ammonia 70 / 15 / 15 / 2 v/v/v/v)
ESI-MS: (M+H)+ = 751/753/755 (Br2)
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Example 3
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-[(R)-2-(4-amino-3,5-dibromo-phenyl)-1-(1-methyl-1 H-benzimidazol-2-yl)-
ethyl)-amide
Br H Chiral
/ N~
H
0 \ Br
N~~~N~N~N
H N
0 H3C
H
The product was obtained analogously to Example 1 from 4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic acid-[(R)-2-(4-
amino-3,5-dibromo-phenyl)-1-(2-methylamino-phenylcarbamoyl)-ethyl]-amide
(Intermediate product 3).
Yield: 46% of theory
Rf = 0.64 (silica gel, dichloromethane I MeOH I cyclohexane I conc. aqueous
ammonia 70 / 15 I 15 I 2 vlvlvlv)
ESI-MS: (M+H)+ = 694/6961698 (Br2)
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Example 4
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-[(R)-2-(4-amino-3,5-dibromo-phenyl)-1-(1 H-benzimidazol-2-yl)-ethyl]-
amide
e~ r~
r
H
H
The product was obtained analogously to Example 1 from 4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic acid-[(R)-2-(4-
amino-3,5-dibromo-phenyl)-1-(2-amino-phenylcarbamoyl)-ethyl]-amide
(Intermediate product 4).
Yield: 27% of theory
Rf = 0.69 (silica gel, dichloromethane I MeOH I cyclohexane I conc. aqueous
ammonia 70 / 15 I 15 I 2 v/v/v/v)
ESI-MS: (M+H)+ = 680/682/684 (Br2)
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Examale 5
Methyl-2-((R)-2-(4-amino-3,5-dibromo-phenyl)-1-{[4-(2-oxo-1,4-dihydro-2H-
quinazolin-3-yl)-piperidin-1-carbonyl]-amino}-ethyl)-1H-benzimidazole-5-
carboxylate
r f
r
\ ~ H H I~ ~ ~ O -CHs
H
The product was obtained analogously to Example 1 from methyl 4-amino-3-
((R)-3-(4-amino-3,5-dibromo-phenyl)-2-{[4-(2-oxo-1,4-dihydro-2H-quinazolin-
3-yl)-piperidin-1-carbonyl]-amino}-propionylamino)-benzoate (Intermediate
product 5).
Yield: 95% of theory
ESI-MS: (M+H)+ = 724/726/728 (Br2)
Example 6
Methyl-2-((R)-2-(4-amino-3,5-dibromo-phenyl)-1-{[4-(2-oxo-1,2,4,5-tetrahydro-
1, 3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-ethyl)-1 H-
benzimidazole-5-carboxylate
Br H
I
/ I . 1-I
0 \ r
H N --~1'~O -CH 3
H
H
The product was obtained analogously to Example 1 from 4-amino-3-((R)-3-
(4-amino-3,5-dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-
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benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionylamino)-benzoate
methyl (Intermediate product 6).
Yield: 85% of theory
ESI-MS: (M+H)+ = 738/7401742 (Br2)
Example 7
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-
[(R)-2-(4-amino-3,5-dibromo-phenyl)-1-(1-butyl-1 H-benzimidazol-2-yl)-ethyl]-
amide
Br H
l
h
O r
H N
1
H
CH3
The product was obtained analogously to Example 1 from 4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic acid-[(R)-2-(4-
amino-3,5-dibromo-phenyl)-1-(2-butylamino-phenylcarbamoyl)-ethyl]-amide
(Intermediate product 7).
Yield: 20% of theory
ESI-MS: (M+H)+ = 736/738/740 (Br2)
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Example 8
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-
{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[1-(3-pyrrolidin-1-yl-propyl)-1 H-
benzimidazol-2-yl]-ethyl}-amide
Br h~
/ ~ . ~-I
r
H
H
The product was obtained analogously to Example 1 from 4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic acid-{(R)-2-(4-
amino-3,5-dibromo-phenyl)-1-(2-(3-pyrrolidin-1-yl-propylamino)-
phenylcarbamoyl]-ethyl}-amide (Intermediate product 8).
Yield: 9% of theory
ESI-MS: (M+H)+ = 791/793/795 (Brz)
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Example 9
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-
[(R)-2-(4-amino-3,5-dibromo-phenyl)-1-(1-pyridin-3-ylmethyl-1 H-benzimidazol-
2-yl)-ethyl]-amide
r h~
w
r
/ \ H / \
H
N
The product was obtained analogously to Example 1 from 4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic acid-((R)-2-(4-
amino-3,5-dibromo-phenyl)-1-{2-[(pyridin-3-ylmethyl)-amino]-
phenylcarbamoyl}-ethyl)-amide (Intermediate product 9).
Yield: 31 % of theory
ESI-MS: (M+H) + = 771/773/775 (Br2)
Example 10
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-
[(R)-2-(4-amino-3,5-dibromo-phenyl)-1-(1-benzyl-1 H-benzimidazol-2-yl)-ethyl]-
amide
r F
I
r
/ \ H / \
H
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The product was obtained analogously to Example 1 from 4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic acid-[(R)-2-(4-
amino-3,5-dibromo-phenyl)-1-(2-benzylamino-phenylcarbamoyl)-ethyl]-amide
(Intermediate product 10).
Yield: 47% of theory
ESI-MS: (M+H)+ = 770/772/774 (Br2)
Example 11
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-
{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[1-(1-methyl-piperidin-4-ylmethyl)-1 H-
benzimidazol-2-yl]-ethyl}-amide
Br H
I
0 ~ r
N
H N
H
CH3
The product was obtained analogously to Example 1 from 4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic acid-((R)-2-(4-
amino-3,5-dibromo-phenyl)-1-~2-[(1-methyl-piperidin-4-ylmethyl)-amino]-
phenylcarbamoyl}-ethyl)-amide (Intermediate product 11 ).
Yield: 25% of theory
ESI-MS: (M+H)+ = 791/793/795 (Br2)
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Example 12
2-((R)-2-(4-amino-3,5-dibromo-phenyl)-1-{(4-(2-oxo-1,2,4, 5-tetrahydro-1,3-
benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-ethyl)-1 H-benzimidazole-5-
carboxylic acid
Br H
I
~i
O r
O
N
H H N --~~'~ -H
O
H
To a solution of 1.5 g (2.03 mmol) methyl 2-((R)-2-(4-amino-3,5-dibromo-
phenyl)-1-{(4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carbonyl]-amino}-ethyl)-1 H-benzimidazole-5-carboxylate in 100 mL MeOH
was added a solution of 0.4 g lithium hydroxide in 50 mL water and the
mixture was stirred for 2 days at RT. The organic solvent was eliminated i.
vac. and the aqueous residue was extracted three times with in each case 20
mL dichloromethane. The aqueous phase was then acidified by the addition of
25 mL of a 1 N hydrochloric acid and the product precipitated was filtered off
and dried. 1.1 g (75% of theory) of colourless crystals were obtained, Rf =
0.22 (silica gel, dichloromethane / MeOH I cyclohexane I conc. aqueous
ammonia 70 / 15 / 15 / 2 vlv/v/v).
ESI-MS: (M+H)+ = 7241726/728 (Br2).
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Example 13
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-
{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[6-(4-methyl-piperazin-1-carbonyl)-1 H-
benzimidazol-2-yl]-ethyl}-amide
Br H
I
0 \ r
O
rv
H N __C\~
H
H
N -CH 3
To a solution of 0.20 g (0.276 mmol) 2-((R)-2-(4-amino-3,5-dibromo-phenyl)-
1-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-
amino}-ethyl)-1 H-benzimidazole-5-carboxylic acid in 50 mL THF was added
0.10 g (0.311 mmol) TBTU, 0.042 g (0.305 mmol) HOBt and 0.2 mL Hunig
base and this mixture was stirred for 20 minutes at RT. To this mixture was
added 34 NL (0.30 mmol) 1-methylpiperazine and the mixture was stirred for 2
days at RT. The solvent was eliminated i. vac., the residue combined with sat.
aqueous sodium bicarbonate solution and exhaustively extracted with
dichloromethane. The combined dichloromethane extracts were combined
with aqueous potassium hydrogen sulphate solution and the precipitate
formed was filtered off and dried. 0.12 g (54% of theory) of colourless solid
was obtained, Rf = 0.40 (silica gel, dichloromethane / MeOH I cyclohexane I
conc. aqueous ammonia 70 / 15 / 15 / 2 v/v/v/v).
ESI-MS: (M+H)+ = 806/808/810 (Br2)
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Example 14
2-((R)-2-(4-amino-3,5-dibromo-phenyl)-1-f [4-(2-oxo-1,2,4,5-tetrahydro-1,3-
benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-ethyl)-1 H-benzimidazole-5-
carboxylic acid-(3-dimethylamino-propyl)-amide
r h
H ~ / \
H N
H H
H3C
To a mixture of 0.30 g (0.414 mmol) 2-((R)-2-(4-amino-3,5-dibromo-phenyl)-1-
{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-
amino}-ethyl)-1 H-benzimidazole-5-carboxylic acid in 50 mL THF was added
0.16 g (0.498 mmol) TBTU, 0.065 g (0.47 mmol) HOBt and 0.2 mL Hunig
base and this mixture was stirred for 30 minutes at RT. The undissolved
fraction of this mixture was dissolved by the addition of DMF, then 55 NL
(0.433 mmol) 3-dimethylamino-1-propylamine was added dropwise and the
resulting mixture was stirred for 16 hours. The solvent was eliminated i.
vac.,
the residue taken up in sat. aqueous sodium bicarbonate solution and
exhaustively extracted with dichloromethane. The combined extracts were
washed with water, dried over sodium sulphate and evaporated down i. vac..
The residue was purified by column chromatography on silica gel using
dichloromethane / MeOH. 0.11 g (33% of theory) colourless crystals were
obtained, Rf = 0.22 (silica gel, dichloromethane / MeOH / cyclohexane / cone
aqueous ammonia 70 / 15 / 15 / 2 v/v/v/v).
ESI-MS: (M-H) = 806/808/810 (Br2).
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Example 15
2-((R)-2-(4-amino-3, 5-dibromo-phenyl)-1-{[4-(2-oxo-1,2,4, 5-tetrahydro-1, 3-
benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-ethyl)-1 H-benzimidazole-5-
carboxylic acid-(2-dimethylamino-ethyl)-amide
Br H
i I h
O \ r
O
N
H H N --~~~N CHs
i~
H H CH
3
The product was prepared analogously to Example 14 starting from 2-((R)-2-
(4-amino-3,5-dibromo-phenyl)-1-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-
benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-ethyl)-1 H-benzimidazole-5-
carboxylic acid and N1,N1-dimethyl-ethan-1,2-diamine.
Yield: 24% of theory
Rf = 0.36 (silica gel, dichloromethane / MeOH / cyclohexane / conc. aqueous
ammonia 70 / 15 I 15 I 2 v/v/v/v)
ESI-MS: (M+H)+ = 794/796/798 (Br2)
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Example 16
4-(2-Oxo-1,4-dihydro-2H-quinazolin-3-yl)-piperidin-1-carboxylic acid-{(R)-2-(4-
amino-3,5-dibromo-phenyl)-1-[1-(3-dimethylamino-propyl)-5-phenyl-1 H
imidazol-2-yl]-ethyl}-amide
r !~
li
tar
\ ~ H N
H
N-~3
HOC
A mixture of 0.185 g (0.30 mmol) tert. butyl f(R)-2-(4-amino-3,5-dibromo-
phenyl)-1-[1-(3-dimethylamino-propyl)-5-phenyl-1 H-imidazol-2-yl]-ethyl}-
carbaminate (Intermediate product 13), 0.065 g (0.60 mmol) anisol and 3 mL
dichloromethane was combined with 0.58 mL (7.45 mmol) TFA and stirred for
2.5 hours at RT. The solvents were eliminated i. vac., the crude 4-{(R)-2-
amino-2-[1-(3-dimethylamino-propyl)-5-phenyl-1 H-imidazol-2-yl]-ethyl}-2,6-
dibromo-phenyiamine formed was taken up in 5 mL THF, and 0.153 mL (0.89
mmol) Hunig base and 0.054 g (0.328 mmol) CDT were added with stirring
and cooling over an ice bath. The mixture was stirred for 30 minutes while
cooling with ice and for 30 minutes at RT, combined with 0.69 g (0.30 mmol)
3-piperidin-4-yl-3,4-dihydro-1 H-quinazoline-2-one, 15 mL THF and 2 mL DMF
and refluxed for 2.5 hours. The reaction mixture was evaporated down i. vac.,
the residue dissolved in EtOAc, washed repeatedly with water and sat.
aqueous NaCI solution and dried over magnesium sulphate. After elimination
of the solvent an oily residue remained which was purified by column
chromatography on silica gel using dichloromethane / MeOH / conc. aqueous
ammonia 90 / 9 / 1. 0.03 g (13% of theory) of the desired product was
obtained.
ESI-MS: (M-H) = 777/779/781 (Br2).
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Example 17
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-
{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-(1-(4-dimethylamino-butyl)-1 H-
benzimidazol-2-yl]-ethyl}-amide
Br
li
r
H
H
H3C
~3
To a solution of 200 mg (0.609 mmol) (R)-3-(4-amino-3,5-dibromo-phenyl)-2-
{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-
amino}-propionic acid in 10 mL DMF/THF (2:1 v/v) was added at RT 116 mg
(0.361 mmol) TBTU and 65 pL (0.369 mmol) Hunig base and the mixture was
stirred for 20 minutes. 75 mg (0.362 mmol) N-(4-dimethylamino-butyl)-
benzene-1,2-diamine (Intermediate product 18) was added and stirred for 16
hours at RT. The mixture was filtered through basic Alox, washed again with
mL DMF and evaporated down i. vac.. The residue was dissolved in 20 mL
dioxane, combined with 100 mg p-toluenesulphonic acid and refluxed for 45
minutes. The solvent was evaporated off i. vac. and the residue taken up in
dichloromethane. The org. phase was washed with 15% aqueous potassium
carbonate solution, dried over sodium sulphate and evaporated down i. vac..
The crude product was purified by HPLC-MS (Zorbax Bonus C18 amide-
phase 5 Nm, gradient 0.15% formic acid in water / acetonitrile 10 / 90 ~ 90 /
10 v/v) and then lyophilised.
Yield: 10 mg (4% of theory)
Rf = 0.43 (silica gel, dichloromethane / MeOH / cyclohexane / conc. aqueous
ammonia 70 / 15 / 15 / 2 v/v/v/v)
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ESI-MS: (M+H)+ = 779/781/783 (Br2)
Example 18
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-~(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[1-(1-methyl-piperidin-4-yl)-1 H-
benzimidazol-2-yl]-ethyl}-amide
Br I
r
H
H
H3C
The product was obtained analogously to Example 17 starting from (R)-3-(4-
amino-3,5-dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-
benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid and N-(1-
methyl-piperidin-4-yl)-benzene-1,2-diamine (Intermediate product 19).
Yield: 9% of theory
Rf = 0.50 (silica gel, dichloromethane / MeOH / cyclohexane / conc. aqueous
ammonia 70 / 15 / 15 / 2 v/v/v/v)
ESI-MS: (M+H)+ = 777/779/781 (Br2)
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Example 19
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-[(R)-2-(4-amino-3,5-dibromo-phenyl)-1-(1-cyclohexyl-1 H-benzimidazol-2-
yl)-ethyl]-amide
Br I
~i
r
H N
H
The product was obtained analogously to Example 17 starting from (R)-3-(4-
amino-3,5-dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-
benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid N-cyclohexyl-
benzene-1,2-diamine. The crude product was purified by column
chromatography (silica gel, dichloromethane / MeOH / conc. aqueous
ammonia 90 / 10 / 1 v/v/v) and triturated with diisopropylether.
Yield: 21 % of theory
Rf = 0.81 (silica gel, dichloromethane I MeOH / cyclohexane I conc. aqueous
ammonia 70 / 15 / 15 / 2 v/v/v/v)
ESI-MS: (M+H)+ = 7621764/766 (Br2)
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Example 20
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-[(R)-2-(4-amino-3,5-dibromo-phenyl)-1-(1-cyclopentyl-1 H-benzimidazol-
2-yl)-ethyl]-amide
r
li
f
H N
H
The product was obtained analogously to Example 17 starting from (R)-3-(4-
amino-3,5-dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-
benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid and N-
cyclopentyl-benzene-1,2-diamine. The crude product was purified by column
chromatography (silica gel, dichloromethane / MeOH / conc. aqueous
ammonia 90 / 10 / 1 v/v/v) purified and triturated with diisopropylether.
Yield: 31 % of theory
Rf = 0.78 (silica gel, dichloromethane I MeOH / cyclohexane I conc. aqueous
ammonia 70 / 15 / 15 / 2 v/v/v/v)
ESI-MS: (M+H)+ = 748/750/752 (Br2)
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Example 21
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[1-(5-dimethylamino-pentyl)-1 H-
benzimidazol-2-yl]-ethyl}-amide
Br H
I
i I 1i
O r
N
~.~C, ~ ~I
i
H N
1
H
H C N _CH 3
3
The product was obtained analogously to Example 17 starting from (R)-3-(4-
amino-3,5-dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-
benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid and N-(5-
dimethylamino-pentyl)-benzene-1,2-diamine (Intermediate product 20). The
crude product was purified by column chromatography (silica gel,
dichloromethane / MeOH I conc. aqueous ammonia 90 I 10 / 1 v/v/v) and
triturated with diisopropylether.
Yield: 67% of theory
Rf = 0.55 (silica gel, dichloromethane / MeOH / cyclohexane / conc. aqueous
ammonia 70 / 15 / 15 / 2 v/v/v/v)
ESI-MS: (M+H)+ = 793/795/797 (Br2)
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Exam~~le 22
4-[2-((R)-2-(4-amino-3, 5-d ibromo-phenyl)-1-~[4-(2-oxo-1,2,4, 5-tetrahydro-1,
3-
benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-ethyl)-benzimidazol-1-yi]-
butyrate methyl
Br H
I
O \ r
N
H N
1
H
O
CH3
The product was obtained analogously to Example 17 starting from methyl
(R)-3-(4-amino-3,5-dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-
benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid and 4-(2-
aminophenylamino)-butyrate (Intermediate product 21). The crude product
was purified by column chromatography (silica gel, dichloromethane / MeOH /
conc. aqueous ammonia 90 / 10 / 1 v/v/v) and triturated with diisopropylether.
Yield: 55% of theory
Rf = 0.80 (silica gel, dichloromethane / MeOH / cyclohexane / conc. aqueous
ammonia 70 / 15 / 15 / 2 v/v/v/v)
ESI-MS: (M+H)+ = 780/782/784 (Br2)
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Example 23
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[6-chloro-1-(3-dimethylamino-
propyl)-1 H-benzimidazol-2-yl]-ethyl}-amide
Br I
tar
H N
H CI
aC ~ 'ai3
H
The product was obtained analogously to Example 17 starting from (R)-3-(4-
amino-3,5-dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-
benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid and 4-chloro-
N2-(3-dimethylamino-propyl)-benzene-1,2-diamine (Intermediate product 22).
After being purified by column chromatography (silica gel, dichloromethane /
MeOH / conc. aqueous ammonia 90 / 10 / 1 v/v/v) and triturated with
diisopropylether the crude product was isolated as the p-toluenesulphonic
acid salt.
Yield: 27% of theory
Rf = 0.61 (silica gel, dichloromethane / MeOH / cyclohexane / conc. aqueous
ammonia 70 / 15 / 15 / 2 v/v/v/v)
ESI-MS: (M+H)+ = 799/781/783/785 (Br2Cl)
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Example 24
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[1-(3-dimethylamino-propyl)-6-
fluoro-1 H-benzimidazol-2-yl]-ethyl}-amide
Br I
11
Br
H N
H F
~~~a
H
The product was obtained analogously to Example 17 starting from (R)-3-(4-
amino-3, 5-dibromo-phenyl)-2-f [4-(2-oxo-1,2,4,5-tetrahydro-1,3-
benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid and N2-(3-
dimethylamino-propyl)-4-fluoro-benzene-1,2-diamine (Intermediate product
23). After being purified by column chromatography (silica gel,
dichloromethane / MeOH / conc. aqueous ammonia 90 / 10 / 1 v/vlv) and
triturated with diisopropylether the crude product was isolated as the p-
toluenesulphonic acid salt.
Yield: 13% of theory
Rf = 0.18 (silica gel, dichloromethane I MeOH I cyclohexane / conc. aqueous
ammonia 70 / 15 / 15 / 2 v/v/v/v)
ESI-MS: (M+H)+ = 783/785/787 (Br2)
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Example 25
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[1-(3-dimethylamino-propyl)-5-
fluoro-1 H-benzimidazol-2-yl]-ethyl}-amide
Br F
ti r
Fi N
H
r-~3
H3C
The product was obtained analogously to Example 17 starting from (R)-3-(4-
amino-3,5-dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-
benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid and N1-(3-
dimethylamino-propyl)-4-fluoro-benzene-1,2-diamine (Intermediate product
24). After being purified by column chromatography (silica gel,
dichloromethane I MeOH / conc. aqueous ammonia 90 I 10 / 1 v/v/v) and
triturated with diisopropylether the crude product was isolated as the p-
toluenesulphonic acid salt.
Yield: 57% of theory
Rf = 0.45 (silica gel, dichloromethane / MeOH / cyclohexane / conc. aqueous
ammonia 70 / 15 / 15 / 2 v/v/v/v)
ESI-MS: (M+H)+ = 783/785/787 (Br2)
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ExamJ~le 26
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{(R)-2-(4-amino-3,5-dibromo-phenyl)-1-[5,6-dichloro-1-(3-dimethylamino-
propyl)-1 H-benzimidazol-2-yl]-ethyl}-amide
r I
r
H N ~ ~ I
H CI
~r~a
H
The product was obtained analogously to Example 17 starting from (R)-3-(4-
amino-3,5-dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-
benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid and 4,5-
dichloro-N-(3-dimethylamino-propyl)-benzene-1,2-diamine (Intermediate
product 25). After being purified by column chromatography (silica gel,
dichloromethane / MeOH / conc. aqueous ammonia 90 / 10 / 1 v/v/v) and
triturated with diisopropylether the crude product was isolated as the p-
toluenesulphonic acid salt.
Yield: 18% of theory
Rf = 0.31 (silica gel, dichloromethane / MeOH / cyclohexane / conc. aqueous
ammonia 70 / 15 I 15 I 2 v/v/v/v)
ESI-MS: (M+H)+ = 833/835/837/839/841 (Br2C12)
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Example 27
Methyl-2-((R)-2-(4-amino-3,5-dibromo-phenyl)-1-{[4-(2-oxo-1,2,4,5-tetrahydro-
1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-ethyl)-1-(3-pyrrolidin-1-
yl-propyl)-1 H-benzimidazole-5-carboxylate
Br
li
r
H N
~3
H
A solution of 1.00 g (1.151 mmol) methyl 3-((R)-3-(4-amino-3,5-dibromo-
phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carbonyl]-amino}-propionylamino)-4-(3-pyrrolidin-1-yl-propylamino)-benzoate
(Intermediate product 14) in 20 mL glacial acetic acid was refluxed for 2
hours
and then the solvent was evaporated i. vac.. The crude product was purified
by column chromatography (silica gel, dichloromethane / MeOH I conc.
aqueous ammonia 90 / 10 / 1 v/v/v) and triturated with diisopropyl ether.
Yield: 410 mg (42% of theory)
Rf = 0.39 (silica gel, dichloromethane I MeOH I cyclohexane I conc. aqueous
ammonia 70 / 15 / 15 / 2 v/v/v/v)
ESI-MS: (M+H)+ = 849/851/853 (Br2)
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Example 28
2-(2-(4-Amino-3-chloro-5-trifluoromethyl-phenyl)-1-{[4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-ethyl)-1-(3-
pyrrolidin-1-yl-propyl)-1H-benzimidazole-5-carboxylic acid
r
tsr
11 IV ~ \ p -H
H
To a solution of 320 mg (0.376 mmol) methyl 2-((R)-2-(4-amino-3,5-dibromo-
phenyl)-1-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carbonyl]-amino}-ethyl)-1-(3-pyrrolid in-1-yl-propyl)-1 H-benzimidazole-5-
carboxylate (Example 27) in 20 mL THF was added at RT a solution of 64 mg
(1.525 mmol) lithium hydroxide-monohydrate in 2 mL water and the mixture
was stirred for 2 days at RT. The organic solvent was evaporated off i. vac.
and the aqueous residue was washed with dichloromethane. The aqueous
phase was acidified to pH 2 with 1 M aqueous HCI, the product precipitated
was filtered off and dried i. vac..
Yield: 240 mg (76% of theory)
Rf = 0.28 (silica gel, dichloromethane / MeOH / cyclohexane / conc. aqueous
ammonia 70 / 15 / 15 / 2 v/v/v/v)
ESI-MS: (M+H)+ = 835/837/839 (Br2)
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Example 29
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{(R)-2-(3,5-dibromo-4-hydroxy-phenyl)-1-[1-(1-methyl-piperidin-4-
ylmethyl)-1 H-benzimidazol-2-yl]-ethyl}-amide
~I
0
N
H N
1
H
CH3
To a solution of 500 mg (0.819 mmol) (R)-3-(3,5-dibromo-4-hydroxy-phenyl)-
2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-
amino}-propionic acid, 321 mg (1.000 mmol) TBTU and 0.277 mL (2.000
mmol) triethylamine in 10 mL DMF was added 197 mg (0.900 mmol) N-(1-
methyl-piperidin-4-ylmethyl)-benzene-1,2-diamine (Intermediate product 17)
and the mixture was stirred for 16 hours at RT. The reaction mixture was
poured onto 150 mL of sat. aqueous sodium bicarbonate solution and stirred
for 15 minutes at RT. The precipitate formed was filtered off, washed with
water and dried i. vac.. The intermediate product was dissolved in 30 mL
dioxane and 5 mL isopropanol, 10 mg of p-toluenesulphonic acid were added
and the mixture was heated to 115 °C for 40 minutes. The solvent was
evaporated off i. vac., the residue taken up in dichloromethane and the org.
phase washed with 15% aqueous potassium carbonate solution. The org.
phase was dried over sodium sulphate and evaporated down i. vac.. The
residue was purified by HPLC-MS (Zorbax Bonus C18 amide-phase 5 Nm,
gradient 0.15% formic acid in water / acetonitrile 10 / 90 -> 90 / 10 v/v) and
the product was lyophilised.
Yield: 36 mg (6% of theory)
EI-MS: M+ = 792/794/796 (Br2)
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Example 30
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{(R)-2-(3,5-dibromo-4-hydroxy-phenyl)-1-[1-(1-methyl-piperidin-4-yl)-1 H-
benzimidazol-2-yl]-ethyl}-amide
Br
i I h
O r
N
H N I
1
H
N
H 3C ~
The product was obtained analogously to Example 29 starting from (R)-3-(3,5-
dibromo-4-hydroxy-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-
3-yl)-piperidin-1-carbonyl]-amino}-propionic acid and N-(1-methyl-piperidin-4-
yl)-benzene-1,2-diamine (Intermediate product 19).
Yield: 24 mg (4% of theory)
EI-MS: M+ = 778/780/782 (Br2)
Example 31
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{(R)-2-(3,5-dibromo-4-hydroxy-phenyl)-1-[1-(3-dimethylamino-propyl)-1 H-
benzimidazol-2-yl]-ethyl}-amide
Br
~ I
O \ r
N
H N I
1
H
aC N _CH3
H
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The product was obtained analogously to Example 29 starting from (R)-3-(3,5-
dibromo-4-hydroxy-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-
3-yl)-piperidin-1-carbonyl]-amino}-propionic acid and N-(3-dimethylamino-
propyl)-benzene-1,2-diamine.
Yield: 42 mg (7% of theory)
EI-MS: M+ = 766/768/770 (Br2)
Example 32
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{(R)-2-(3,5-dibromo-4-hydroxy-phenyl)-1-[1-(3-pyrrolidin-1-yl-propyl)-1 H-
benzimidazol-2-yl]-ethyl}-amide
8r
~1
r
H N
1
H
The product was obtained analogously to Example 29 starting from (R)-3-(3,5-
dibromo-4-hydroxy-phenyl)-2-{[4-(2-oxo-1,2,4, 5-tetrahyd ro-1, 3-benzod
iazepin-
3-yl)-piperidin-1-carbonyl]-amino}-propionic acid and N-(3-pyrrolidin-1-yl-
propyl)-benzene-1,2-diamine (Intermediate product 15).
Yield: 21 mg (3% of theory)
EI-MS: M+ = 792/794/796 (Br2)
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Example 33
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-[1-[6-chloro-1-(3-dimethylamino-propyl)-1 H-benzimidazol-2-yl]-2-(3,4-
dibromo-phenyl)-ethyl]-amide
m ~3
The product was obtained analogously to Example 17 starting from 3-(3,4-
dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-
piperidin-1-carbonyl]-amino}-propionic acid (Intermediate product 45) and 4-
chloro-N2-(3-dimethylamino-propyl)-benzene-1,2-diamine (Intermediate
product 22). The crude product was purified by column chromatography (silica
gel, dichloromethane I MeOH / conc. aqueous ammonia 90 I 10 I 1 v/v/v) and
triturated with diisopropyl ether.
Yield: 30% of theory
ESI-MS: (M+H)+ = 784/786/788 (Br2)
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Example 34
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{2-(3,4-dibromo-phenyl)-1-[5,6-dichloro-1-(3-dimethylamino-propyl)-1 H-
benzimidazol-2-yl]-ethyl-amide
0
N~~~C~N~N
H
/ \ N.-Oo i
1
H
H3C m i3
The product was obtained analogously to Example 17 starting from 3-(3,4-
dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-
piperidin-1-carbonyl]-amino}-propionic acid (Intermediate product 45) and 4,5-
dichloro-N-(3-dimethylamino-propyl)-benzene-1,2-diamine (Intermediate
product 25). The crude product was purified by column chromatography (silica
gel, dichloromethane I MeOH I conc, aqueous ammonia 90 / 10 I 1 v/v/v)
purified and triturated with diisopropyl ether.
Yield: 7% of theory
ESI-MS: (M+H)+ = 818/820/822/824/826 (Br2Cl2)
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Example 35
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-[1-[7-chloro-1-(3-dimethylamino-propyl)-1 H-benzimidazoi-2-yl]-2-(3,4-
dibromo-phenyl)-ethyl]-amide
Br
Br
O "'
N~~C~N~N N
O H N
N
1
CI
H C N CH3
3
The product was obtained analogously to Example 17 starting from 3-(3,4-
dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-
piperidin-1-carbonyl]-amino}-propionic acid (Intermediate product 45) and 3-
chloro-N2-(3-dimethylamino-propyl)-benzene-1,2-diamine (Intermediate
product 27). The crude product was purified by column chromatography (silica
gel, dichloromethane I MeOH / conc. aqueous ammonia 90 I 10 / 1 v/v/v)
purified and triturated with diisopropyl ether.
Yield: 15% of theory
ESI-MS: (M+H)+ = 784/786/788/790 (Br2Cl)
Example 36
4-(2-Oxo-1,2,4, 5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{2-(3,4-dibromo-phenyl)-1-[1-(3-dimethylamino-propyl)-6-fluoro-1 H-
benzimidazol-2-yl]-ethyl}-amide
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H3C
The product was obtained analogously to Example 17 starting from 3-(3,4-
dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-
piperidin-1-carbonyl]-amino}-propionic acid (Intermediate product 45) and N2-
(3-dimethylamino-propyl)-4-fluoro-benzene-1,2-diamine (Intermediate product
23). The crude product was purified by column chromatography (silica gel,
dichloromethane I MeOH I cone. aqueous ammonia 90 l 10 I 1 v/v/v) purified
and triturated with diisopropylether.
Yield: 19% of theory
ESI-MS: (M+H)+ = 768/770/72 (Br2)
Example 37
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{2-(3,4-dibromo-phenyl)-1-[1-(1-methyl-piperidin-4-yl)-1 H-benzimidazol-
2-yl]-ethyl}-amide
H3C
The product was obtained analogously to Example 17 starting from 3-(3,4-
dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-
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piperidin-1-carbonyl]-amino}-propionic acid (Intermediate product 45) and N-
(1-methyl-piperidin-4-yl)-benzene-1,2-diamine (Intermediate product 19). The
crude product was purified by column chromatography (silica gel,
dichloromethane I MeOH I conc. aqueous ammonia 90 I 10 / 1 v/vlv) and
triturated with diisopropylether.
Yield: 19% of theory
ESI-MS: (M+H)+ = 762/764/766 (Br2)
Example 38
4-(2-Oxo-1,2,4,5-tetrahydro-1, 3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{2-(3,4-dibromo-phenyl)-1-(1-(3-pyrrolidin-1-yl-propyl)-1 H-benzimidazol-
2-yl]-ethyl}-amide
Nr/'
N~o
H
The product was obtained analogously to Example 17 starting from 3-(3,4-
dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-
piperidin-1-carbonyl]-amino}-propionic acid (Intermediate product 45) and N-
(3-pyrrolidin-1-yl-propyl)-benzene-1,2-diamine (Intermediate product 15). The
crude product was purified by column chromatography (silica gel,
dichloromethane I MeOH / conc. aqueous ammonia 90 I 10 / 1 v/v/v) and
triturated with diisopropylether.
Yield: 19% of theory
ESI-MS: (M+H)+ = 776/778/780 (Br2)
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Example 39
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{2-(3,4-dibromo-phenyl)-1-[1-(1-methyl-piperidin-4-ylmethyl)-1 H-
benzimidazol-2-yl]-ethyl}-amide
/ \
N
1
f
The product was obtained analogously to Example 17 starting from 3-(3,4-
dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-
piperidin-1-carbonyl]-amino}-propionic acid (Intermediate product 45) and N-
(1-methyl-piperidin-4-ylmethyl)-benzene-1,2-diamine (Intermediate product
19). The crude product was purified by column chromatography (silica gel,
dichloromethane I MeOH / conc. aqueous ammonia 90 I 10 I 1 v/v/v) purified
and triturated with diisopropyl ether.
Yield: 11 % of theory
ESI-MS: (M+H)+ = 7761778/780 (Br2)
Example 40
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-[2-(3,4-dibromo-phenyl)-1-(1-pyridin-3-ylmethyl-1 H-benzimidazol-2-yl)-
ethyl]-amide
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Br
Br
N~~'f N_ 'N %
N ~ H N
t
H
N
The product was obtained analogously to Example 17 starting from 3-(3,4-
dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-
piperidin-1-carbonyl]-amino}-propionic acid (Intermediate product 45) and N-
pyridin-3-ylmethyl-benzene-1,2-diamine (Intermediate product 16). The crude
product was purified by column chromatography (silica gel, dichloromethane I
MeOH / conc. aqueous ammonia 90 I 10 I 1 v/v/v) purified and triturated with
diisopropyl ether.
Yield: 12% of theory
ESI-MS: (M+H)+ = 756/758/760 (Br2)
Example 41
4-(2-Oxo-1,2,4, 5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{2-(3,4-dibromo-phenyl)-1-[1-(3-dimethylamino-propyl)-1 H-benzimidazol-
2-yl]-ethyl}-amide
The product was obtained analogously to Example 17 starting from 3-(3,4-
dibromo-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-
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piperidin-1-carbonyl]-amino}-propionic acid (Intermediate product 45) and N-
(3-dimethylamino-propyl)-benzene-1,2-diamine. The crude product was
purified by column chromatography (silica gel, dichloromethane / MeOH /
conc. aqueous ammonia 90 / 10 / 1 v/v/v) purified and triturated with
diisopropyl ether.
Yield: 20% of theory
ESI-MS: (M+H)+ = 750/752/754 (Br2)
Exam~~le 42
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{2-(3,4-dibromo-phenyl)-1-[1-(4-dimethylamino-butyl)-1 H-benzimidazol-2-
yl]-ethyl}-amide
N~~'~N
N"O
1
H
The product was obtained analogously to Example 17 starting from 3-(3,4-
dibromo-phenyl)-2-~[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-
piperidin-1-carbonyl]-amino}-propionic acid (Intermediate product 45) and N-
(3-dimethylamino-butyl)-benzene-1,2-diamine (Intermediate product 18). The
crude product was purified by column chromatography (silica gel,
dichloromethane / MeOH / conc. aqueous ammonia 90 / 10 l 1 v/v/v) purified
and triturated with diisopropyl ether.
Yield: 16% of theory
ESI-MS: (M+H)+ = 764/766/768 (Br2)
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Example 43
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{2-(3,4-diethyl-phenyl)-1-[1-(3-d imethylamino-propyl)-1 H-benzimidazol-2-
yl]-ethyl}-amide
CH~Hj
O
N~~C~N~N N
O H N
N
1
H
H C N~CH3
3
To a solution of 150 mg (0.304 mmol) 3-(3,4-diethyl-phenyl)-2-{[4-(2-oxo-
1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-
propionic acid (Intermediate product 50), 105 mg (0.327 mmol) TBTU and 44
mg (0.326 mmol) HOBt in 50 mL THF was added 58 pL (0.327 mmol) Hunig
base and the mixture was stirred for 30 minutes at RT. 60 mg (0.310 mmol) of
N-(3-dimethylamino-propyl)-benzene-1,2-diamine was added and the mixture
was stirred for 16 hours at RT. The solvent was evaporated i. vac., the
residue taken up in dichloromethane and the org. phase washed with sat.
aqueous sodium bicarbonate solution. The org. phase was dried over sodium
sulphate and evaporated i. vac.. 30 mL dioxane and 100 mg p-
toluenesulphonic acid was added and the mixture was refluxed for 15
minutes. The solvent was evaporated off i. vac. and dichloromethane was
added. The org. phase was washed with sat. aqueous sodium bicarbonate
solution, dried over sodium sulphate and evaporated i. vac.. Purification by
HPLC-MS (Zorbax Bonus C18 amide-phase 5 pm, gradient 0.15% formic acid
in water / acetonitrile 10 / 90 -~ 90 / 10 v/v) yielded the product.
Yield: 80 mg (40% of theory)
Rf = 0.51 (silica gel, dichloromethane / MeOH / cyclohexane / cone. aqueous
ammonia 70 I 15 I 15 I 2 v/v/v/v)
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ESI-MS: (M+H)+ = 650
Example 44
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{2-(3,4-diethyl-phenyl)-1-[1-(4-d imethylamino-butyl)-1 H-benzimidazol-2-
yl]-ethyl}-amide
0
N~,.,~N
N" 0
1
H
H3C
The product was obtained analogously to Example 17 starting from 3-(3,4-
diethyl-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-
piperidin-1-carbonyl]-amino}-propionic acid (Intermediate product 50) and N-
(3-dimethylamino-butyl)-benzene-1,2-diamine (Intermediate product 18). The
crude product was purified by column chromatography (silica gel,
dichloromethane I MeOH / conc. aqueous ammonia 90 / 10 I 1 v/v/v) and
triturated with diisopropyl ether.
Yield: 29% of theory
ESI-MS: (M+H)+ = 664
Example 45
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{2-(3,4-diethyl-phenyl)-1-[1-(1-methyl-piperidin-4-yl)-1 H-benzimidazol-2-
yl]-ethyl}-amide
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H3C
The product was obtained analogously to Example 17 starting from 3-(3,4-
diethyl-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-
piperidin-1-carbonyl]-amino}-propionic acid (Intermediate product 50) and N-
(1-methyl-piperidin-4-yl)-benzene-1,2-diamine (Intermediate product 19). The
crude product was purified by column chromatography (silica gel,
dichloromethane / MeOH / conc. aqueous ammonia 90 / 10 / 1 v/v/v) and
triturated with diisopropyl ether.
Yield: 6% of theory
ESI-MS: (M+H)+ = 662
Example 46
4-(2-Oxo-1,2,4, 5-tetrahydro-1, 3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{2-(3,4-diethyl-phenyl)-1-[1-(3-pyrrolidin-1-yl-propyl)-1 H-benzimidazol-
2-
ylj-ethyl}-amide
CH~Ha
O \
N~~C~N~N N
O H N
N
1
H
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The product was obtained analogously to Example 17 starting from 3-(3,4-
diethyl-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-
piperidin-1-carbonyl]-amino}-propionic acid (Intermediate product 50) and N-
(3-pyrrolidin-1-yl-propyl)-benzene-1,2-diamine (Intermediate product 15). The
crude product was purified by column chromatography (silica gel,
dichloromethane / MeOH I conc. aqueous ammonia 90 / 10 / 1 v/v/v) and
triturated with diisopropyl ether.
Yield: 16% of theory
ESI-MS: (M+H)+ = 676
Example 47
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{2-(3,4-diethyl-phenyl)-1-[1-(1-methyl-piperidin-4-ylmethyl)-1 H-
benzimidazol-2-yl]-ethyl}-amide
0
N~~C~N~N
I
N o H
1
H
The product was obtained analogously to Example 17 starting from 3-(3,4-
diethyl-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-
piperidin-1-carbonyl]-amino}-propionic acid (Intermediate product 50) and N-
(1-methyl-piperidin-4-ylmethyl)-benzene-1,2-diamine (Intermediate product
17) . The crude product was purified by column chromatography (silica gel,
dichloromethane / MeOH / conc. aqueous ammonia 90 / 10 / 1 v/v/v) and
triturated with diisopropyl ether.
Yield: 28% of theory
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ESI-MS: (M+H)+ = 676
Example 48
4-(2-Oxo-1,2,4, 5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-[2-(3,4-diethyl-phenyl)-1-(1-pyridin-3-ylmethyl-1H-benzimidazol-2-yl)-
ethyl]-amide
CH~H3
0
N N~N .iN
N 0 H N
1
H
N
The product was obtained analogously to Example 17 starting from 3-(3,4-
diethyl-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-
piperidin-1-carbonyl]-amino}-propionic acid (Intermediate product 50) and N-
pyridin-3-ylmethyl-benzene-1,2-diamine (Intermediate product 16) . The crude
product was purified by column chromatography (silica gel, dichloromethane /
MeOH I conc. aqueous ammonia 90 / 10 I 1 vlv/v) and triturated with
diisopropyl ether.
Yield: 17% of theory
ESI-MS: (M+H)+ = 656
Example 49
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{2-(3,5-bis-trifluoromethyl-phenyl)-1-[1-(1-methyl-piperidin-4-yl)-1 H-
benzimidazol-2-yl]-ethyl}-amide
' 130 Case 1 /1308
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N
~ N'~
H
H3C
The product was obtained analogously to Example 17 starting from 3-(3,5-bis-
trifluoromethyl-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-
yl)-piperidin-1-carbonyl]-amino}-propionic acid (Intermediate product 53) and
N-(1-methyl-piperidin-4-yl)-benzene-1,2-diamine (Intermediate product 19) .
The crude product was purified by column chromatography (silica gel,
dichloromethane / MeOH / conc. aqueous ammonia 90 / 10 / 1 v/v/v) and
triturated with petroleum ether.
Yield: 8% of theory
ESI-MS: (M+H)+ = 742
Example 50
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{2-(3,5-bis-trifluoromethyl-phenyl)-1-[1-(3-pyrrolidin-1-yl-propyl)-1 H-
benzimidazol-2-yl]-ethyl}-amide
N
N
1
H
131 Case 1 /1308
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The product was obtained analogously to Example 17 starting from 3-(3,5-bis-
trifluoromethyl-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-
yl)-piperidin-1-carbonyl]-amino}-propionic acid (Intermediate product 53) and
N-(3-pyrrolidin-1-yl-propyl)-benzene-1,2-diamine (Intermediate product 15) .
The crude product was purified by column chromatography (silica gel,
dichloromethane / MeOH / conc. aqueous ammonia 90 / 10 / 1 v/v/v) and
triturated with petroleum ether.
Yield: 11 % of theory
ESI-MS: (M+H)+ = 756
Example 51
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{2-(3,5-bis-trifluoromethyl-phenyl)-1-[1-(1-methyl-piperidin-4-ylmethyl)-
1 H-benzimidazol-2-yl]-ethyl}-amide
0
N~~~~N~N
N~0 H
1
H
The product was obtained analogously to Example 17 starting from 3-(3,5-bis-
trifluoromethyl-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-
yl)-piperidin-1-carbonyl]-amino}-propionic acid (Intermediate product 53) and
N-(1-methyl-piperidin-4-ylmethyl)-benzene-1,2-diamine (Intermediate product
17) . The crude product was purified by column chromatography (silica gel,
dichloromethane / MeOH / conc. aqueous ammonia 90 / 10 / 1 v/v/v) and
triturated with petroleum ether.
Yield: 23% of theory
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ESI-MS: (M+H)+ = 756
Exami~le 52
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{2-(3, 5-bis-trifluoromethyl-phenyl)-1-[1-(3-dimethylamino-propyl)-1 H-
benzimidazol-2-yl]-ethyl}-amide
The product was obtained analogously to Example 17 starting from 3-(3,5-bis-
trifluoromethyl-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-
yl)-piperidin-1-carbonyl]-amino}-propionic acid (Intermediate product 53) and
N-(3-dimethylamino-propyl)-benzene-1,2-diamine. The crude product was
purified by column chromatography (silica gel, dichloromethane / MeOH /
conc. aqueous ammonia 90 / 10 / 1 v/v/v) and triturated with petroleum ether.
Yield: 35% of theory
ESI-MS: (M+H)+ = 730
Example 53
Methyl-2-(2-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-1-{[4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-ethyl)-1-(3-
pyrrolidin-1-yl-propyl)-1 H-benzimidazole-5-carboxylate
133 Case 1 /1308
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0
N~~~~N
N~O -CH3
1
H
To a solution of 800 mg (1.444 mmol) 3-(4-amino-3-chloro-5-trifluoromethyl-
phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-
carbonyl]-amino}-propionic acid (Intermediate product 60) and 500 mg (1.557
mmol) TBTU in 70 mL DMF was added 0.27 mL (1.550 mmol) Hunig base
and the mixture was stirred for 30 minutes at RT. 410 mg (1.478 mmol)
methyl 3-amino-4-(3-pyrrolidin-1-yl-propylamino)-benzoate (Intermediate
product 26) was added and the mixture was stirred for 16 hours at RT. The
reaction mixture was evaporated i. vac. and the residue combined with 15%
aqueous potassium carbonate solution. The precipitate formed was filtered off
and dried i. vac.. The precipitate was dissolved in 20 mL glacial acetic acid
and refluxed for 2 hours. The solvent was evaporated i. vac. and the crude
product purified by column chromatography (silica gel, dichloromethane /
MeOH / conc. aqueous ammonia 90 / 10 / 1 v/v/v) and triturated with
diisopropyl ether.
Yield: 430 mg (41 % of theory)
Rf = 0.36 (silica gel, dichloromethane / MeOH / cyclohexane / conc. aqueous
ammonia 70 / 15 / 15 / 2 v/v/v/v)
ESI-MS: (M+H)+ = 795/797 (CI)
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Example 54
2-(2-(4-Amino-3-chloro-5-trifluoromethyl-phenyl)-1-~[4-(2-oxo-1,2,4,5-
tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-ethyl)-1-(3-
pyrrolidin-1-yl-propyl)-1H-benzimidazole-5-carboxylic acid
0
N~/C~N~N
N~O H
1
H
To a solution of 310 mg (0.390 mmol) methyl 2-(2-(4-amino-3-chloro-5-
trifluoromethyl-phenyl)-1-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-
yl)-piperidin-1-carbonyl]-amino}-ethyl)-1-(3-pyrrolidin-1-yl-propyl)-1 H-
benzimidazole-5-carboxylate (Example 53) in 20 mL THF was added a
solution of 72 mg (1.716 mmol) lithium hydroxide-monohydrate in 5 mL water
and the mixture was stirred for 2 days at RT. THF was evaporated i. vac., the
residue was dissolved in water and 1.7 mL of 1 M aqueous HCI was added.
The precipitate formed was filtered off and dried i. vac..
Yield: 190 mg (62% of theory)
Rf = 0.22 (silica gel, dichloromethane / MeOH / cyclohexane / conc. aqueous
ammonia 70 / 15 / 15 / 2 v/v/v/v)
ESI-MS: (M+H)+ = 781/783 (CI)
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Example 55
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{2-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-1-[1-( 1-methyl-piperid in-
4-
yl)-1 H-benzimidazol-2-yl]-ethyl}-amide
F F F
H
I
/ N~
H
O v ~CI
N
N~~~N H N
\ N O
1
H
N
HOC
The product was obtained analogously to Example 17 starting from 3-(4-
amino-3-chloro-5-trifluoromethyl-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-
benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid (Intermediate
product 60) and N-(1-methyl-piperidin-4-yl)-benzene-1,2-diamine
(Intermediate product 19) . The crude product was purified by column
chromatography (silica gel, dichloromethane / MeOH / conc. aqueous
ammonia 90 / 10 / 1 v/v/v) and triturated with petroleum ether.
Yield: 2% of theory
ESI-MS: (M+H)+ = 723/725 (CI)
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Example 56
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{2-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-1-[ 1-(3-pyrrolid in-1-yl-
propyl)-1 H-benzimidazol-2-yl]-ethyl}-amide
H
O
N~~C~N~N
H
N~O I
1
H
The product was obtained analogously to Example 17 starting from 3-(4-
amino-3-chloro-5-trifluoromethyl-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-
benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid (Intermediate
product 60) and N-(3-pyrrolidin-1-yl-propyl)-benzene-1,2-diamine
(Intermediate product 15) . The crude product was purified by column
chromatography (silica gel, dichloromethane / MeOH / conc. aqueous
ammonia 90 / 10 / 1 v/v/v) and triturated with petroleum ether.
Yield: 19% of theory
ESI-MS: (M+H)+ = 737/739 (CI)
Example 57
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-f 2-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-1-[1-(1-methyl-piperidin-
4-
ylmethyl)-1 H-benzimidazol-2-yl]-ethyl}-amide
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The product was obtained analogously to Example 17 starting from 3-(4-
amino-3-chloro-5-trifluoromethyl-phenyl)-2-{[4-(2-oxo-1,2,4, 5-tetrahydro-1, 3-
benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid (Intermediate
product 60) and N-(1-methyl-piperidin-4-ylmethyl)-benzene-1,2-diamine
(Intermediate product 17) . The crude product was purified by column
chromatography (silica gel, dichloromethane / MeOH / conc. aqueous
ammonia 90 / 10 / 1 v/v/v) and triturated with petroleum ether.
Yield: 26% of theory
ESI-MS: (M+H)+ = 737/739 (CI)
Example 58
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-[2-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-1-(1-pyridin-3-ylmethyl-1
H-
benzimidazol-2-yl)-ethyl]-amide
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The product was obtained analogously to Example 17 starting from 3-(4-
amino-3-chloro-5-trifluoromethyl-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-
benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid (Intermediate
product 60) and N-pyridin-3-ylmethyl-benzene-1,2-diamine (Intermediate
product 16) . The crude product was purified by column chromatography
(silica gel, dichloromethane / MeOH I cone. aqueous ammonia 90 I 10 I 1
v/v/v) and triturated with petroleum ether.
Yield: 6% of theory
ESI-MS: (M+H)+ = 717/719 (CI)
Example 59
4-(2-Oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-piperidin-1-carboxylic
acid-{2-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-1-[1-(3-dimethylamino-
propyl)-1 H-benzimidazol-2-yl]-ethyl}-amide
H
The product was obtained analogously to Example 17 starting from 3-(4-
amino-3-chloro-5-trifluoromethyl-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-1,3-
benzodiazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid (Intermediate
product 60) and N-(3-dimethylamino-propyl)-benzene-1,2-diamine. The crude
product was purified by column chromatography (silica gel, dichloromethane /
MeOH / cone. aqueous ammonia 90 I 10 I 1 v/v/v) and triturated with
petroleum ether.
Yield: 12% of theory
139 Case 1 /1308
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ESI-MS: (M+H)+ = 711/713 (CI)
Example 60
3-(1-{4-(3,4-Diethyl-phenyl)-3-[1-(3-dimethylamino-propyl)-1 H-benzimidazol-2-
yl]-butyryl}-piperidin-4-yl)-1,3,4,5-tetrahydro-1,3-benzodiazepin-2-one
H C N~CH3
3
The product was obtained analogously to Example 43 starting from 2-(3,4-
diethyl-benzyl)-4-oxo-4-[4-(2-oxo-1,2,4,5-tetrahydro-1, 3-benzodiazepin-3-yl)-
piperidin-1-yl]-butyric acid (Intermediate product 64) and N-(3-dimethylamino-
propyl)-benzene-1,2-diamine. The crude product was purified by HPLC-MS
(Zorbax Bonus C18 amide-phase 5 Nm, gradient 0.15% formic acid in water /
acetonitrile 10 / 90 -~ 90 / 10 v/v) and then lyophilised.
Yield: 5% of theory)
Rf = 0.61 (silica gel, dichioromethane / MeOH / cyclohexane / conc. aqueous
ammonia 70 I 15 / 15 / 2 v/v/v/v)
ESI-MS: (M+H)+ = 649
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Example 61
3-(1-{4-(4-Amino-3-chloro-5-trifluoromethyl-phenyl)-3-[1-(3-pyrrolidin-1-yl-
propyl)-1 H-benzimidazol-2-yl]-butyryl}-piperidin-4-yl)-1, 3,4, 5-tetrahyd ro-
1, 3-
benzodiazepin-2-one
H
To a solution of 380 mg (0.708 mmol) 2-(4-amino-3-chloro-5-trifluoromethyl-
benzyl)-4-oxo-4-[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-
piperidin-1-yl]-butyraldehyde (Intermediate product 36) in 7.5 mL DMF and 0.5
mL water was added 233 mg (0.710 mmol) N-(3-pyrrolidin-1-yl-propyl)-
benzene-1,2-diamine-trihydrochloride (Intermediate product 15) and the
mixture was stirred at RT for 48 hours in an atmosphere of air. The reaction
mixture was evaporated i. vac. and EtOAc was added. The org. phase was
washed with sat. aqueous sodium bicarbonate solution, dried over sodium
sulphate and evaporated i. vac.. The crude product was purified by column
chromatography (silica gel, EtOAc I MeOH / sat. aqueous ammonia 90 I 10 I 1
v/v/v) and triturated with diisopropyl ether.
Yield: 130 mg (25% of theory)
R, = 0.17 (silica gel, EtOAc / MeOH / sat. aqueous ammonia 90 / 10 / 1 v/v/v)
ESI-MS: (M+H)+ = 736/738 (CI)
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Example 62
3-(1-{4-(4-Amino-3-chloro-5-trifluoromethyl-phenyl)-3-(1-(3-imidazol-1-yl-
propyl)-1 H-benzimidazol-2-yl]-butyryl}-piperidin-4-yl)-1,3,4,5-tetrahydro-1,3-
benzodiazepin-2-one
H
To a solution of 537 mg (1.000 mmol) 2-(4-amino-3-chloro-5-trifluoromethyl-
benzyl)-4-oxo-4-[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-
piperidin-1-yl]-butyraldehyde (Intermediate product 36) in 10 mL DMF was
added 391 mg (1.200 mmol) N-(3-imidazol-1-yl-propyl)-benzene-1,2-diamine-
trihydrochloride (Intermediate product 28) and the mixture was stirred for 16
hours in an atmosphere of air. The reaction mixture was poured into ice water,
the precipitate formed was filtered off and washed with water. The crude
product was purified using HPLC-MS (Zorbax Bonus C18 amide-phase 5 Nm,
gradient 0.15% formic acid in water / acetonitrile 10 / 90 -~ 90 / 10 v/v) and
lyophilised.
Yield: 470 mg (64% of theory)
ESI-MS: (M+H)+ = 733/735 (Br2)
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Exam le 63
3-(1-{4-(4-Amino-3-chloro-5-trifluoromethyl-phenyl)-3-[5-(3-dimethylamino-
propyl)-1-ethyl-1 H-benzimidazol-2-yl]-butyryl}-piperidin-4-yl)-1,3,4,5-
tetrahydro-1,3-benzodiazepin-2-one
CH3
To a solution of 860 mg (1.602 mmol) 2-(4-amino-3-chloro-5-trifluoromethyl-
benzyl)-4-oxo-4-[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-
piperidin-1-yl]-butyraldehyde (Intermediate product 36) in 15 mL DMF was
added 391 mg (1.200 mmol) 4-(3-dimethylamino-propyl)-N1-ethyl-benzene-
1,2-diamine (Intermediate product 29), the mixture was acidified to pH 4-5
with semiconc. aqueous HCI and stirred for 3 hours under an atmosphere of
air. The reaction mixture was poured onto saturated. aqueous sodium
bicarbonate solution and the precipitate formed was filtered off. The crude
product was purified by column chromatography (silica gel, dichloromethane /
MeOH / conc. aqueous ammonia 90 / 10 / 3 v/v/v).
Yield: 280 mg (24% of theory)
Rf = 0.37 (silica gel, dichloromethane I cyclohexane I MeOH / sat. aqueous
ammonia 70 / 15 / 15 / 2 v/v/v/v)
ESI-MS: (M+H)+ = 738/740 (CI)
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Example 64
3-(1-~4-(4-Amino-3-chloro-5-trifluoromethyl-phenyl)-3-[1-(3-diethylamino-
propyl)-1H-benzimidazol-2-yl]-butyryl}-piperidin-4-yl)-1,3,4,5-tetrahydro-1,3-
benzodiazepin-2-one
H
N
N
1
H
The product was obtained analogously to Example 62 starting from 2-(4-
amino-3-chloro-5-trifluoromethyl-benzyl)-4-oxo-4-[4-(2-oxo-1,2,4,5-tetrahydro-
1,3-benzodiazepin-3-yl)-piperidin-1-yl]-butyraldehyde (Intermediate product
36) and N-(3-diethylamino-propyl)-benzene-1,2-diamine-trihydrochloride
(Intermediate product 39).
Yield: 65% of theory
ESI-MS: (M+H)+ = 738/740 (CI)
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Example 65
3-(1-{4-(4-Amino-3-chloro-5-trifluoromethyl-phenyl)-3-[1-(4-hydroxy-butyl)-1 H-
benzimidazol-2-yl]-butyryl}-piperidin-4-yl)-1,3,4,5-tetrahydro-1,3-
benzodiazepin-2-one
H
The product was obtained analogously to Example 62 starting from 2-(4-
amino-3-chloro-5-trifluoromethyl-benzyl)-4-oxo-4-[4-(2-oxo-1,2,4,5-tetrahydro-
1,3-benzodiazepin-3-yl)-piperidin-1-yl]-butyraldehyde (Intermediate product
36) and 4-(2-amino-phenylamino)-butan-1-ol-dihydrochloride (Intermediate
product 30).
Yield: 72% of theory
ESI-MS: (M+H)+ = 697/699 (CI)
Example 66
3-(1-{4-(4-Amino-3-chloro-5-trifluoromethyl-phenyl)-3-[1-(1-methyl-piperidin-3-
ylmethyl)-1 H-benzimidazol-2-yl]-butyryl}-piperidin-4-yl)-1,3,4,5-tetrahydro-
1,3-
benzodiazepin-2-one
' 145 Case 1 /1308
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'H
N
~ i N~
H
The product was obtained analogously to Example 62 starting from 2-(4-
amino-3-chloro-5-trifluoromethyl-benzyl)-4-oxo-4-[4-(2-oxo-1,2,4,5-tetrahydro-
1,3-benzodiazepin-3-yl)-piperidin-1-yl]-butyraldehyde (Intermediate product
36) and N-(1-methyl-piperidin-3-ylmethyl)-benzene-1,2-diamine-
trihydrochloride (Intermediate product 31).
Yield: 64% of theory
ESI-MS: (M+H)+ = 736/738 (CI)
Example 67
3-[1-(4-(4-Amino-3-chloro-5-trifluoromethyl-phenyl)-3-~1-[2-(4-methyl-
piperazin-1-yl)-ethyl]-1 H-benzimidazol-2-yl}-butyryl)-piperidin-4-yl]-1,3,4,5-
tetrahydro-1,3-benzodiazepin-2-one
146 Case 1/1308
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The product was obtained analogously to Example 62 starting from 2-(4-
amino-3-chloro-5-trifluoromethyl-benzyl)-4-oxo-4-[4-(2-oxo-1,2,4, 5-tetrahydro-
1,3-benzodiazepin-3-yl)-piperidin-1-yl]-butyraldehyde (Intermediate product
36) and N-[2-(4-methyl-piperazin-1-yl)-ethyl]-benzene-1,2-diamine-
tetrahydrochloride (Intermediate product 32).
Yield: 71 % of theory
ESI-MS: (M+H)+ = 7511753 (CI)
Example 68
3-{1-[4-(4-Amino-3-chloro-5-trifluoromethyl-phenyl)-3-(1-pyridin-4-ylmethyl-
1 H-benzimidazol-2-yl)-butyryl]-piperidin-4-yl}-1,3,4,5-tetrahydro-1,3-
benzodiazepin-2-one
The product was obtained analogously to Example 62 starting from 2-(4-
amino-3-chloro-5-trifluoromethyl-benzyl)-4-oxo-4-[4-(2-oxo-1,2,4,5-tetrahydro-
1,3-benzodiazepin-3-yl)-piperidin-1-yl]-butyraldehyde (Intermediate product
36) and N-pyridin-4-ylmethyl-benzene-1,2-diamine-trihydrochloride
(Intermediate product 33).
Yield: 82% of theory
ESI-MS: (M+H)+ = 716/718 (CI)
Example 69
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3-{1-[4-(4-Amino-3-chloro-5-trifluoromethyl-phenyl)-3-(1-piperidin-4-ylmethyl-
1 H-benzimidazol-2-yl)-butyryl]-piperidin-4-yl}-1,3,4,5-tetrahydro-1,3-
benzodiazepin-2-one
H
To a solution of 537 mg (1.000 mmol) 2-(4-amino-3-chloro-5-trifluoromethyl-
benzyl)-4-oxo-4-[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-
piperidin-1-yl]-butyraldehyde (Intermediate product 36) in 10 mL DMF was
added tert. butyl 4-[(2-amino-phenylamino)-methyl]-piperidin-1-carboxylate
(Intermediate product 34) and the mixture was stirred for 16 hours in an
atmosphere of air at RT. The reaction mixture was poured onto ice water, the
precipitate formed was filtered off, washed with water and dried i. vac.
(Yield:
790 mg, 96% of theory).
1 mL of TFA was added to a solution of 580 mg (0.705 mmol) of the crude
product in 10 mL dichloromethane and the mixture was stirred for 16 hours at
RT. The reaction mixture was diluted with dichloromethane, the org. phase
was washed with sat. aqueous sodium bicarbonate solution, dried over
sodium sulphate and evaporated i. vac.. The residue was dissolved in 3.5 mL
DMF and purified by HPLC-MS (Zorbax Bonus C18 amide-phase 5 pm,
gradient 0.15% formic acid in water I acetonitrile 10 I 90 --~ 90 I 10 vlv)
and
then lyophilised.
Yield: 150 mg (30% of theory)
ESI-MS: (M+H)+ = 722/724 (CI)
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Example 70
3-(1-{4-(4-Amino-3-chloro-5-trifluoromethyl-phenyl)-3-[1-(3-dimethylamino-2,2-
dimethyl-propyl)-1 H-benzimidazol-2-yl]-butyryl}-piperidin-4-yl)-1,3,4,5-
tetrahydro-1,3-benzodiazepin-2-one
To a solution of 320 mg (0.596 mmol) 2-(4-amino-3-chloro-5-trifluoromethyl-
benzyl)-4-oxo-4-[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-
piperidin-1-yl]-butyraldehyde (Intermediate product 36) in 7 ml_ DMF was
added 230 mg (0.695 mmol) N-(3-dimethylamino-2,2-dimethyl-propyl)-
benzene-1,2-diamine-trihydrochloride (Intermediate product 37) and the
mixture was stirred for 16 hours in an atmosphere of air. The reaction mixture
was evaporated down i. vac. and the residue combined with EtOAc. The org.
phase was washed with sat. aqueous sodium bicarbonate solution, dried over
sodium sulphate and evaporated i. vac.. The crude product was purified by
column chromatography (silica gel, gradient dichloromethane I MeOH 20 I 1
--~ 10 I 1 v/v) then (Alox, neutral, activity II-III, gradient EtOAc I MeOH
100 I 0
-~ 40 / 1) and HPLC-MS (Zorbax Bonus C18 amide-phase 5 pm, gradient
0.15% formic acid in water I acetonitrile 10 I 90 ~ 90 I 10 v/v).
Yield: 71 mg (16% of theory)
ESI-MS: (M+H)+ = 738/740 (CI)
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Example 71
3-(1-{4-(4-Amino-3-chloro-5-trifluoromethyl-phenyl)-3-[7-(3-dimethylamino-
propoxy)-1 H-benzimidazol-2-yl]-butyryl~-piperidin-4-yl)-1, 3,4, 5-tetrahydro-
1,3-
benzodiazepin-2-one
H
CH3
The product was obtained analogously to Example 70 starting from 2-(4-
amino-3-chloro-5-trifluoromethyl-benzyl)-4-oxo-4-[4-(2-oxo-1,2,4,5-tetrahydro-
1,3-benzodiazepin-3-yl)-piperidin-1-yl]-butyraldehyde (Intermediate product
36) and 3-(3-dimethylamino-propoxy)-benzene-1,2-diamine-trihydrochloride
(Intermediate product 38).
Yield: 19% of theory
ESI-MS: (M+H)+ = 726/728 (CI)
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Example 72
3-{1-[4-(4-Amino-3-chloro-5-trifluoromethyl-phenyl)-3-(1-piperidin-4-ylmethyl-
1 H-imidazo[4,5-c]pyridin-2-yl)-butyryl]-piperidin-4-yl}-1,3,4,5-tetrahydro-
1,3-
benzodiazepin-2-one
To a solution of 537 mg (1.000 mmol) 2-(4-amino-3-chloro-5-trifluoromethyl-
benzyl)-4-oxo-4-[4-(2-oxo-1,2,4,5-tetrahydro-1,3-benzodiazepin-3-yl)-
piperidin-1-yl]-butyraldehyde (Intermediate product 36) in 10 mL DMF was
added tert. butyl 4-[(3-amino-pyridin-4-ylamino)-methyl]-piperidin-1-
carboxylate (Intermediate product 40) and the mixture was stirred for 16 hours
under an atmosphere of air at 100 °C. The reaction mixture was poured
onto
ice water, the precipitate formed was filtered off, washed with water and
dried
i. vac. (Yield: 720 mg, 80% of theory).
1 mL TFA was added to a solution of 690 mg (0.838 mmol) of the crude
product in 10 mL dichloromethane and the mixture was stirred for 16 hours at
RT. The reaction mixture was diluted with dichloromethane, the org. phase
was washed with sat. aqueous sodium bicarbonate solution, dried over
sodium sulphate and evaporated down i. vac.. The residue was dissolved in
DMF and purified by means of HPLC-MS (Zorbax Bonus C18 amide-phase 5
Nm, gradient 0.15% formic acid in water I acetonitrile 10 I 90 --~ 90 I 10
v/v)
and then lyophilised.
Yield: 22 mg (4% of theory)
ESI-MS: (M+H)+ = 723/725 (CI)
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Example 73
3-( 1-{4-(4-Amino-3-chloro-5-trifluoromethyl-phenyl)-3-[3-(3-pyrrolidin-1-yl-
propyl)-3H-imidazo[4,5-c]pyridin-2-yl]-butyryl}-piperidin-4-yl)-1, 3,4,5-
tetrahydro-1,3-benzodiazepin-2-one
The product was prepared analogously to Example 62 starting from 2-(4-
amino-3-chloro-5-trifluoromethyl-benzyl)-4-oxo-4-[4-(2-oxo-1,2,4,5-tetrahydro-
1,3-benzodiazepin-3-yl)-piperidin-1-yl]-butyraldehyde (Intermediate product
36) and N3-(3-pyrrolidin-1-yl-propyl)-pyridine-3,4-diamine (Intermediate
product 41) at 100 °C and purified by HPLC-MS (Zorbax Bonus C18 amide-
phase 5 Nm, gradient 0.15% formic acid in water I acetonitrile 10 I 90 --~ 90
I
vlv). Lyophilisation of a 1 N aqueous solution of the product yielded the
corresponding hydrochloride.
Yield: 11 % of theory
ESI-MS: (M+H)+ = 7371739 (CI)
Example 74
3-~1-[4-(4-Amino-3-chloro-5-triouoromethyl-phenyl)-3-(1-methyl-6-pyrrolidin-1-
ylmethyl-1 H-benzimidazol-2-yl)-butyryl]-piperidin-4-yl}-1,3,4,5-tetrahydro-
1,3-
benzodiazepin-2-one
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The product was prepared analogously to Example 62 starting from 2-(4-
amino-3-chloro-5-trifluoromethyl-benzyl)-4-oxo-4-[4-(2-oxo-1,2,4,5-tetrahydro-
1,3-benzodiazepin-3-yl)-piperidin-1-yl]-butyraldehyde (Intermediate product
36) and lVZ-methyl-4-pyrrolidin-1-ylmethyl-benzene-1,2-diamine (Intermediate
product 42) at 100 °C and purified by HPLC-MS (Zorbax Bonus C18 amide-
phase 5 Vim, gradient 0.15% formic acid in water I acetonitrile 10 I 90 -a 90
I
v/v).
Yield: 11 % of theory
HPLC-MS: Rt = 5,622 Min. (Zorbax C18, gradient 0.1 % formic acid in water /
acetonitrile I formic acid 10 / 90 --~ 90 I 10 v/v/v)
ESI-MS: (M+H)+ = 722/724 (CI)
Exam~~le 75
Enantiomer of 3-(1-{4-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-3-[1-(3-
diethylamino-propyl)-1 H-benzimidazol-2-yl]-butyryl~-piperidin-4-yl)-1,3,4,5-
tetrahydro-1,3-benzodiazepin-2-one
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F F
r ~ .
\ I
i
/ \ N / \
H
j~ ' 3
~N
HOC --~
The enantiomer was obtained starting from Example 64 by HPLC (Chiralcel
OD 250*4.6, hexane I EtOH I DEA 70130/ 0.1 vlvlv), Rt(1) = 14.25 Min.,
Rt(2) = 17.17 Min.).
ESI-MS: (M+H)+ = 738/740 (CI)
Example 76
Enantiomer of 3-[1-(4-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-3-{1-[2-(4-
methyl-piperazin-1-yl)-ethyl]-1 H-benzimidazol-2-yl}-butyryl)-piperidin-4-yl]-
1,3,4,5-tetrahydro-1,3-benzodiazepin-2-one
F F
~1
\ I
i
/ \ N / \
H
N
H3C
The enantiomer was obtained starting from Example 67 using HPLC
(Chiralcel OD 250*4.6, hexane / EtOH I DEA 70 / 30 I 0.1 v/vlv), Rt(1) = 21.75
Min., Rt(2) = 24.86 Min.).
ESI-MS: (M+H)+ = 751/753 (CI)
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The following Examples describe the preparation of pharmaceutical
formulations which contain as active substance any desired compound of
general formula (I):
Example 77
Capsules for powder inhalation containing 1 mg of active ingredient
Composition:
1 capsule for powder inhalation contains:
active ingredient 1.0 mg
lactose 20.0 mg
hard gelatine capsules 50.0 mg
71.0 mg
Method of preparation:
The active ingredient is ground to the particle size required for inhaled
substances. The ground active ingredient is homogeneously mixed with the
lactose. The mixture is transferred into hard gelatine capsules.
Example 78
Inhalable solution for Res~pimat~ containing 1 ma of active ingredient
Composition:
1 puff contains:
active ingredient 1.0 mg
benzalkonium chloride 0.002 mg
disodium edetate 0.0075 mg
purified water ad 15.0 NI
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Method of~reparation:
The active ingredient and benzalkonium chloride are dissolved in water and
transferred into Respimat~ cartridges.
Example 79
Inhalable solution for nebulisers containing 1 mq of active in req_ dient
Composition:
1 vial contains:
active ingredient 0.1 g
sodium chloride 0.18 g
benzalkonium chloride 0.002 g
purified water ad 20.0 ml
Method of preparation:
The active ingredient, sodium chloride and benzalkonium chloride are
dissolved in water.
Example 80
Propellant~as-operated metering aerosol containing 1 mqof active ingredient
Composition:
1 puff contains:
active ingredient 1.0 mg
lecithin 0.1
propellant gas ad 50.0 NI
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Method ofpreaaration:
The micronised active ingredient is homogeneously suspended in the mixture
of lecithin and propellant gas. The suspension is transferred into a
pressurised container with a metering valve.
Examale 81
Nasal saray containing_1 mc,~of active ingredient
Composition:
active ingredient 1.0 mg
sodium chloride 0.9 mg
benzalkonium chloride 0.025 mg
disodium edetate 0.05 mg
purified water ad 0.1 ml
Method of preparation:
The active ingredient and the excipients are dissolved in water and
transferred into a suitable container.
Exam~~le 82
In~lectable solution containing 5 mg of active substance per 5 ml
Composition:
active substance 5 mg
glucose 250 mg
human serum albumin 10 mg
glycofurol
250 mg
water for injections ad 5 ml
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Preparation:
Glycofurol and glucose are dissolved in water for injections (Wfl); human
serum albumin is added; active ingredient is dissolved with heating; made up
to specified volume with Wfl; transferred into ampoules under nitrogen gas.
Example 83
Iniectable solution containing 100 mg of active substance per 20 ml
Composition:
active substance 100 mg
monopotassium dihydrogen phosphate
= KH2P04 12 mg
disodium hydrogen phosphate
= Na2HP04~2H20 2 mg
sodium chloride 180 mg
human serum albumin 50 mg
Polysorbate 80 20 mg
water for injections ad 20 ml
Preparation:
Poiysorbate 80, sodium chloride, monopotassium dihydrogen phosphate and
disodium hydrogen phosphate are dissolved in water for injections (Wfl);
human serum albumin is added; active ingredient is dissolved with heating;
made up to specified volume with Wfl; transferred into ampoules.
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Example 84
Lyo~philisate containing 10 mg of active substance
Composition:
Active substance 10 mg
Mannitol 300 mg
human serum albumin 20 mg
Preparation:
Mannitol is dissolved in water for injections (Wfl); human serum albumin is
added; active ingredient is dissolved with heating; made up to specified
volume with Wfl; transferred into vials; freeze-dried.
Solvent for lyophilisate:
Polysorbate 80 = Tween 80 20 mg
mannitol 200 mg
water for injections ad 10 ml
Preparation:
Polysorbate 80 and mannitol are dissolved in water for injections (Vllfl);
transferred into ampoules.
Example 85
Tablets containing 20 ma of active substance
Composition:
active substance 20 mg
lactose 120 mg
maize starch 40 mg
magnesium stearate2 mg
Povidone K 25 18 mg
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Preparation:
Active substance, lactose and maize starch are homogeneously mixed;
granulated with an aqueous solution of Povidone; mixed with magnesium
stearate; compressed in a tablet press; weight of tablet 200 mg.
Example 86
Capsules containing 20 ma active substance
Composition:
active substance 20 mg
maize starch 80 mg
highly dispersed silica 5 mg
magnesium stearate 2.5 mg
Preparation:
Active substance, maize starch and silica are homogeneously mixed; mixed
with magnesium stearate; the mixture is packed into size 3 hard gelatine
capsules in a capsule filling machine.
Example 87
Suppositories containinct 50 mg of active substance
Composition:
active substance 50 mg
hard fat (Adeps solidus) q.s. ad 1700 mg
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Preparation:
Hard fat is melted at about 38°C; ground active substance is
homogeneously
dispersed in the molten hard fat; after cooling to about 35°C it is
poured into
chilled moulds.
Example 88
Iniectable solution containing 10 mg of active substance per 1 ml
Composition:
active substance 10 mg
mannitol 50 mg
human serum albumin 10 mg
water for injections ad 1 ml
Preparation:
Mannitol is dissolved in water for injections (Wfl); human serum albumin is
added; active ingredient is dissolved with heating; made up to specified
volume with Wfl; transferred into ampoules under nitrogen gas.