Piperazine derivatives, their preparation and uses in therapy (5ht1b receptor activity)
申请人:——
公开号:US20040132720A1
公开(公告)日:2004-07-08
Compounds of formula (I) or a pharmaceutically acceptable salt thereof are disclosed: in which R
a
is a group of formula (i) wherein P
1
is phenyl, naphthyl or heteroaryl; R
1
is halogen, C
1-6
alkyl, C
3-6
cycloalkyl, COC
1-6
alkyl, C
1-6
alkoxy, hydroxy, hydroxyC
1-6
alkyl, nitro, haloC
1-6
alkyl, cyano, SR
6
, SOR
6
, SO
2
R
6
, SO
2
NR
6
R
7
, CO
2
R
6
, CONR
6
R
7
, OCONR
6
COR
7
, NR
6
r
7
, NR
6
COR
7
, NR
6
CO
2
R
7
, NR
6
SO
2
R
7
, NR
6
CONR
7
R
8
, CH
2
NR
6
COR
7
, CH
2
NR
6
CO
2
R
7
, CH
2
NR
6
SO
2
R
7
, CR
6
═NOR
7
where R
6
, R
7
and R
8
are independently hydrogen or C
1-6
alkyl, a is 1, 1, 2, or 3; or R
a
is a group of formula (ii) where P
2
is phenyl, naphthyl, heteroaryl or a 5 to 7 membered heterocyclic ring; P
3
is phenyl, naphthyl or heteroaryl; R
2
is a defined above for R
1
in formula (I) or R
2
is heteroaryl optionally substituted By C
1
alkyl, halogen or COC
1-6
alkyl or is a 5-7 membered heterocyclic ring optionally substituted by oxo; R
3
is halogen, C
1-6
alkyl, C
3-6
cycloalkyl, C
1-6
alkyl, COC
1-6
alkyl, hydroxy, intro, haloC
1-6
alkyl, cyano, CO
2
R
6
, CONR
6
R
7
, NR
6
R
7
where R
6
and R
7
are as defined above; b and c are independently 0, 1, 2, or 3; Y is a single bond, CH
2
or NH; X is oxygen, sulfur or N—R
5
where R
5
is hydrogen or C
1-6
alkyl; R
b
is hydrogen, halogen, C
1-6
alkyl, haloC
1-6
alkyl, COC
1-6
alkyl or cyano; R
c
is hydrogen or C
1-6
alkyl. Processes for their preparation, pharmaceutical compositions containing them and their use in therapy as 5-HT
1B
receptor antagonists, for diseases such as depression, are also disclosed.
1
公开了化学式(I)或其药学上可接受的盐的化合物:其中,R是式(i)的基团,其中P1是苯基、萘基或杂环基;R1是卤素、C1-6烷基、C3-6环烷基、COC1-6烷基、C1-6烷氧基、羟基、羟基C1-6烷基、硝基、卤C1-6烷基、氰基、SR6、SOR6、SO2R6、SO2NR6R7、CO2R6、CONR6R7、OCONR6COR7、NR6r7、NR6COR7、NR6CO2R7、NR6SO2R7、NR6CONR7R8、CH2NR6COR7、CH2NR6CO2R7、CH2NR6SO2R7、CR6═NOR7,其中R6、R7和R8独立地为氢或C1-6烷基,a为1、1、2或3;或R是式(ii)的基团,其中P2是苯基、萘基、杂环基或5-7成员的杂环环;P3是苯基、萘基或杂环基;R2是在式(I)中定义的R1或R2是杂环基,可选地被C1烷基、卤素或COC1-6烷基取代,或是5-7成员的杂环环,可选地被氧代取代;R3是卤素、C1-6烷基、C3-6环烷基、C1-6烷氧基、羟基、介绍、卤C1-6烷基、氰基、CO2R6、CONR6R7、NR6R7,其中R6和R7如上所述;b和c独立地为0、1、2或3;Y是单键、CH2或NH;X是氧、硫或N-R5,其中R5是氢或C1-6烷基;Rb是氢、卤素、C1-6烷基、卤C1-6烷基、COC1-6烷基或氰基;Rc是氢或C1-6烷基。还公开了其制备方法、含有它们的药物组合物以及它们在治疗抑郁等疾病中作为5-HT1B受体拮抗剂的用途。