申请人:GLAXO GROUP LIMITED
公开号:EP0276163A2
公开(公告)日:1988-07-27
The invention relates to compounds of formula (I):
wherein Im represents an imidazolyl group of formula :
R¹ represents a hydrogen atom or a group selected from C1-6alkyl, C3-6alkenyl, C3-10alkynyl, C3-7cycloalkyl, C3-7cycloalkylC1-4alkyl, phenyl, phenylC1-3alkyl, -CO₂R⁸, -COR⁸, -CONR⁸R⁹ or -SO₂R⁸ (wherein R⁸ and R⁹, which may be the same or different, each represents a hydrogen atom, a C1-6alkyl or C3-7cycloalkyl group, or a phenyl or phenylC1-4alkyl group, in which the phenyl group is optionally substituted by one or more C1-4alkyl, C1-4alkoxy or hydroxy groups or halogen atoms, with the proviso that R⁸ does not represent a hydrogen atom when R¹ represents a group -CO₂R⁸ or -SO₂R⁸);
R₂ represents a hydrogen atom or a C1-6alkyl, C3-6alkenyl, C3-7cycloalkyl, phenyl or phenylC1-3 alkyl group;
R³ and R⁴, which may be the same or different, each represents a hydrogen atom or a C1-6alkyl group;
one of the groups represented by R⁵, R⁶ and R⁷ is a hydrogen atom or a C1-6alkyl, C3-7cycloalkyl, C3-6alkenyl, phenyl or phenylC1-3alkyl group, and each of the other two groups, which may be the same or different, represents a hydrogen atom or a C1-6alkyl group;
Q represents a hydrogen atom or a halogen atom or a hydroxy, C1-4alkoxy, phenylC1-3alkoxy or C1-6alkyl group or a group -NR¹⁰R¹¹ or -CONR¹⁰R¹¹ (wherein R¹⁰ and R¹¹, which may be the same or different, each represents a hydrogen atom or a C1-4alkyl or C3-4alkenyl group, or together with the nitrogen atom to which they are attached form a saturated 5 to 7 membered ring);
and with the proviso that when Q represents a hydrogen atom R¹ represents -CO₂R⁸, -COR⁸, -CONR⁸R⁹ or -SO₂R⁸;
and physiologically acceptable salts and solvates thereof.
The compounds are potent and selective antagonists of the effect of 5-HT at 5-HT₃ receptors and are useful, for example, in the treatment of psychotic disorders, anxiety, and nausea and vomiting.
本发明涉及式(I)化合物:
式中 Im 代表咪唑基团:
R¹ 代表氢原子或选自 C1-6 烷基、C3-6 烯基、C3-10 炔基、C3-7 环烷基、C3-7 环烷基 C1-4 烷基、苯基苯基 C1-3烷基、-CO₂R⁸、-COR⁸、-CONR⁸R⁹或-SO₂R⁸(其中 R⁸和 R𠞙 可以相同或不同,各自代表一个氢原子、C1-6烷基或C3-7环烷基,或苯基或苯基C1-4烷基,其中苯基任选被一个或多个C1-4烷基、C1-4烷氧基或羟基或卤素原子取代,但当R¹代表基团-CO₂R⁸或-SO₂R⁸时,R⁸不代表氢原子);
R₂ 代表氢原子或 C1-6 烷基、C3-6 烯基、C3-7 环烷基、苯基或苯基 C1-3 烷基;
R³ 和 R⁴ 可以相同或不同,各自代表氢原子或 C1-6 烷基;
R⁵、R⁶和 R⁷ 所代表的基团之一是氢原子或 C1-6 烷基、C3-7 环烷基、C3-6 烯基、苯基或苯基 C1-3 烷基,另外两个基团(可以相同或不同)各自代表氢原子或 C1-6 烷基;
Q 代表氢原子或卤素原子或羟基、C1-4-烷氧基、苯基 C1-3 烷氧基或 C1-6 烷基或基团-NR¹⁰R¹¹ 或-CONR¹⁰R¹¹(其中 R¹⁰ 和 R¹¹,可以相同或不同,各自代表氢原子或 C1-4 烷基或 C3-4 烯基,或与所连接的氮原子一起形成饱和的 5-7 分子环);
但条件是当 Q 代表氢原子时,R¹ 代表-CO₂R⁸、-COR⁸、-CONR⁸R⁹或-SO₂R⁸;
及其生理上可接受的盐和溶剂。
这些化合物是 5-HT₃ 受体上 5-HT 效应的强效选择性拮抗剂,可用于治疗精神障碍、焦虑、恶心和呕吐等疾病。