Note: Claims are shown in the official language in which they were submitted.
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CLAIMS:
1. Benzo[c]-quinolizine compounds of formula (I)
Image
wherein:
R1, R2, R3, R4, R5, same or different, are chosen in the group consisting of:
H,
C1-8alkyl, C2-8alkenyl, C2-8alkinyl, cyclopropane, cyclobutane, cyclopentane,
cyclohexane, cycloheptane, cyclooctane, norbornane, camphane,
adamantane, phenyl, naphthyl, pyridine, imidazole, pyrrole, indole, triazole,
pyrrolidine, piperidine, halogen, CN, azide, NRR', C1-8alkylamino,
phenylamino, naphthylamino, C1-8alkyloxy, phenyloxy, naphthyloxy, COOR,
CONRR' wherein R and R', same or different, are chosen in the group
consisting of: H, C1-8alkyl, cyclopropane, cyclobutane, cyclopentane,
cyclohexane, cycloheptane, cyclo-octane, norbornane, camphane,
adamantane, phenyl, naphthyl, pyridine, imidazole, pyrrole, indole, triazole,
pyrrolidine, piperidine, phenylC1-8alkyl, naphthylC1-8alkyl;
R5 is chosen in the group consisting of: H, C1-8alkyl, COOR, CN, phenyl,
naphthyl, pyridine, imidazole, pyrrole, indole, triazole, pyrrolidine,
piperidine;
X is chosen in the group consisting of: O, C(=O)R, COOR, NO2, CONR'R
wherein R and R' are as above defined;
Q is chosen in the group consisting of: single bond, C1-8alkyl, C2-8alkenyl,
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C2-8alkinyl, cyclopropane, cyclobutane, cyclopentane, cyclohexane, cyclo-
heptane, cyclooctane, norbornane, camphane, adamantane, CO, CONR, NR,
wherein R is as above defined;
W is chosen in the group consisting of: H, C1-8alkyl, C2-8alkenyl, C2-
8alkinyl,
cyclopropane, cyclobutane, cyclopentane, cyclohexane, cycloheptane,
cyclooctane, norbornane, camphane, adamantane, trifluoromethyl, C1-8alkoxy,
C1-8alkoxy-C1-8alkyl, phenylC1-8alkyl, naphthylC1-8alkyl, phenyl, naphthyl,
phenyloxy, naphthyloxy, phenylamino, naphthylamino, C1-8alkylcarbonyl,
phenylcarbonyl, naphthylcarbonyl, halogen, CN, NRR', C1-8alkylamino,
pyridine, imidazole, pyrrole, indole, triazole, pyrrolidine, piperidine,
wherein
the groups alkyl, alkenyl, alkinyl, cyclopropane, cyclobutane, cyclopentane,
cyclohexane, cycloheptane, cyclooctane, norbornane, camphane,
adamantane, phenyl, naphthyl, pyridine, imidazole, pyrrole, indole, triazole,
pyrrolidine, piperidine can be substituted by halogen, OR, phenyl, NRR', CN,
COOR, CONRR', C1-8alkyl (wherein R and R' are as above defined);
n is an integer comprised between 1 and 4;
the symbol Image means that the corresponding bonds a, b, c, d e, f, and g can
be single or double bonds; and their pharmaceutically acceptable salts or
esters;
with the proviso that when b or f are a double bond then the group R5 is
absent; and with the proviso that the following compounds are excluded from
the claim: 4-carbonitril-2,3-dihydro-(1H)-benzo[c]quinolizin-3-one, 3,4-
dihydro-1-phenyl-4aH-benzo[c]quinolizin-3-one,
Image
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Image
2. Benzo[c]quinolizine compounds of formula (I) according to claim 1
wherein:
R5 = H, pyridine, imidazole, pyrrole, indole, triazole, pyrrolidine,
piperidine;
X=O;
Q=single bond, CO, CONR, NR (wherein R is as defined in claim 1);
W=H, F, Cl, Br, Me, t-butyl, C1-8alkoxy, 2,5-dimethylhexyl, trifluoromethyl,
2,5-(di-trifluoromethyl)-phenyl, 4-methoxy-phenyl, 4-fluoro-phenyl, phenyl,
phenyl-C1-8alkyl, C1-8alkylcarbonyl, phenylcarbonyl;
n=1 and 2;
R1, R2, R3, R4, R6 =H, Me, CN, phenyl, COOR, CONRR' (wherein R and R' are
as defined in claim 1).
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3. Benzo[c]quinolizine compounds according to claims 1 or 2 of formula
1,2,4,4a,5,6 hexahydro-(11H)-benzo[c]quinolizine-3-one;
8-chloro-1,2,4,4a,5,6 hexahydro-(11H)-benzo[c]quinolizine-3-one;
1,2,4,4a,5,6 hexahydro-8-methyl (11H)-benzo[c]quinolizine-3-one;
1,2,4,4a,5,6 hexahydro-1-methyl (11H)-benzo[c]quinolizine-3-one;
1,2,5,6 tetrahydro-(11H)-benzo[c]quinolizine-3-one;
8-chloro-1,2,5,6 tetrahydro-(11H)-benzo[c]quinolizine-3-one;
8-methyl-1,2,5,6 tetrahydro-(11H)-benzo[c]quinolizine-3-one;
4-methyl-1,2,5,6 tetrahydro-(11H)-benzo[c]quinolizine-3-one;
1-methyl-1,2,4,6 tetrahydro-(11H)-benzo[c]quinolizine-3-one;
4,4a,5,6 tetrahydro-(11H)-benzo[c]quinolizine-3-one;
5,6-dihydro-(11H)-benzo[c]quinolizine-3-one;
8-chloro-4,4a,5,6 tetrahydro-(11H)-benzo[c]quinolizine-3-one;
8-chloro-1-methyl-4,4a,5,6-tetrahydro-(11H)-benzo[c]quinolizine-3-
one;
8-methyl-4,4a,5,6 tetrahydro-(11H)-benzo[c]quinolizine-3-one;
4-methyl-4,4a,5,6 tetrahydro-(11H)-benzo[c]quinolizine-3-one
(cis) and (trans);
8-chloro-4-methyl-1,2,5,6 tetrahydro-(11H)-benzo[c]quinolizine-3-one;
4,8-dimethyl-1,2,5,6 tetrahydro-(11H)-benzo[c]quinolizine-3-one;
4,8-dimethyl-4,4a,5,6 tetrahydro-(11H)-benzo[c]quinolizine-3-one
(cis) and (trans);
8-chloro-4-methyl-4,4a,5,6-tetrahydro-(11H)-benzo[c]quinolizine-3-
one (cis) and (trans).
4. Process for the preparation of compounds according to any one of
claims 1 to 3 wherein:
the amide-group of a compound of formula (2)
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Image
is protected with a protecting group Z to give the compound (3)
Image
the above said compound (3) is reduced to compound (4)
Image
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and compound (4) is reacted with a silylether (6)
Image
prepared "in situ" by resting a vinyl-ketone (5)
Image
(wherein R1, R2, R6 are as defined in claim 1) with a silylating agent,
and are finally hydrolized to give the final compound of formula (I)
wherein X = 0.
5. Process according to claim 4 wherein a double bond is introduced in
position a or b of formula (I) by reaction of dichlorodicyanoquinone (DDQ)
with the corresponding silylenolethers or by oxidation with quicksilver
(mercury) acetate of the saturated compound obtained according to claim 4
and the possible transformation of the group X is performed via the
corresponding enoltriflates and following carbonylation in the presence of
palladium diacetate, triphenylphosphine and suitable nucleophilic reagent.
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6. Compound of formula (4)
Image
wherein W, Q, n, R3, R4, R5 are as defined in claim 1 and Z is a carboxy or
thiocarboxy ester protecting group for the amide-group with the proviso that
when R3 = R4 = R5 = (WQ)n = H then Z is not a -COO-lower alkyl group or a
-CSO-lower alkyl group.
7. Pharmaceutical composition wherein the active principle is a compound
of formula (I)
Image
wherein:
R1, R2, R3, R4, R6, same or different, are chosen in the group consisting of:
H,
C1-8alkyl, C2-8alkenyl, C2-8alkinyl, cyclopropane, cyclobutane, cyclopentane,
cyclohexane, cycloheptane, cyclooctane, norbornane, camphane,
adamantine, phenyl, naphthyl, pyridine, imidazole, pyrrole, indole,
triazole, pyrrolidine, piperidine, halogen, CN, azide, NRR', C1-8alkylamino,
phenylamino, naphthylamino, C1-8alkyloxy, phenyloxy, naphthyloxy, COOR,
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CONRR' wherein R and R', same or different, are chosen in the group
consisting of: H, C1-8alkyl, cyclopropane, cyclobutane, cyclopentane,
cyclohexane, cycloheptane, cyclooctane, norbornane, camphane,
adamantine, phenyl, naphthyl, pyridine, imidazole, pyrrole, indole, triazole,
pyrrolidine, piperidine, phenylC1-8alkyl, naphthylC1-8alkyl;
R5 is chosen in the group consisting of: H, C1-8alkyl, COOR, CN, phenyl,
naphthyl, pyridine, imidazole, pyrrole, indole, triazole, pyrrolidine,
piperidine;
X is chosen in the group consisting of: 0, C(=O)R, COOR, NO2, CONR'R
wherein R and R' are as above defined;
Q is chosen in the group consisting of: single bond, C1-8alkyl, C2-8alkenyl,
C2-8alkinyl, cyclopropane, cyclobutane, cyclopentane, cyclohexane, cyclo-
heptane, cyclooctane, norbornane, camphane, adamantine, CO, CONR, NR,
wherein R is as above defined;
W is chosen in the group consisting of: H, C1-8alkyl, C2-8alkenyl, C2-
8alkinyl,
cyclopropane, cyclobutane, cyclopentane, cyclohexane, cycloheptane,
cyclooctane, norbornane, camphane, adamantane, trifluoromethyl, C1-8alkoxy,
C1-8alkoxy-C1-8alkyl, phenylC1-8alkyl, naphthylC1-8alkyl, phenyl, naphthyl,
phenyloxy, naphthyloxy, phenylamino, naphthylamino, C1-8alkylcarbonyl,
phenylcarbonyl, naphthylcarbonyl, halogen, CN, NRR', C1-8alkylamino,
pyridine, imidazole, pyrrole, indole, triazole, pyrrolidine, piperidine,
wherein
the groups alkyl, alkenyl, alkinyl, cyclopropane, cyclobutane, cyclopentane,
cyclohexane, cycloheptane, cyclooctane, norbornane, camphane,
adamantine, phenyl, naphthyl, pyridine, imidazole, pyrrole, indole, triazole,
pyrrolidine, piperidine can be substituted by halogen, OR, phenyl, NRR', CN,
COOK, CONRR', C1-8alkyl (wherein R and R' are as above defined);
n is an integer comprised between 1 and 4;
the symbol Image means that the corresponding bonds a, b, c, d e, f, and g can
be single or double bonds; with the proviso that when b or f are a double
bond then the group R5 is absent;
their pharmaceutically acceptable salts or esters or mixtures thereof in
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combination with the suitable pharmaceutical acceptable excipients.
8. Pharmaceutical composition according to claim 7 for use in the
inhibition of the 5alphaR-I and/or 5alphaR-II iso-enzymes.
9. Pharmaceutical composition according to claims 7 and 8 in the form
suitable for topical use.
10. Use of a pharmaceutical composition according to claim 7 for the
treatment of acne, baldness, prostatic cancer and prostatic hypertrophy in
men and hirsutism in women.