申请人:Glaxo Group Limited
公开号:US05202343A1
公开(公告)日:1993-04-13
The invention relates to compounds of the general formula (I): ##STR1## wherein Im represents an imidazolyl group of the formula: ##STR2## R.sup.1 represents a hydrogen atom or a group selected from C.sub.1-6 alkyl, C.sub.3-6 alkenyl, C.sub.3-10 alkynyl, C.sub.3-7 cycloalkyl, C.sub.3-7 cycloalkylC.sub.1-4 alkyl, phenyl, phenylC.sub.1-3 alkyl, --CO.sub.2 R.sup.5, --COR.sup.5, --CONR.sup.5 R.sup.6 or --SO.sub.2 R.sup.5 ; R.sup.5 and R.sup.6, which may be the same or different, each represents a hydrogen atom, a C.sub.1-6 alkyl or C.sub.3-7 cycloalkyl group, or a phenyl or phenylC.sub.1-4 alkyl group, in which the phenyl group is optionally substituted by one or more C.sub.1-4 alkyl, C.sub.1-4 alkoxy or hydroxy groups or halogen atoms, with the proviso that R.sup.5 does not represent a hydrogen atom when R.sup.1 represents a group --CO.sub.2 R.sup.5 or --SO.sub.2 R.sup.5 ; one of the groups represented by R.sup.2, R.sup.3 and R.sup.4 is a hydrogen atom or a C.sub.1-6 alkyl, C.sub.3-7 cycloalkyl, C.sub.3-6 alkenyl, phenyl or phenylC.sub.1-3 alkyl group, and each of the other two groups, which may be the same or different, represents a hydrogen atom or a C.sub.1-6 alkyl group; Q represents a hydrogen or a halogen atom, or a hydroxy, C.sub.1-4 alkoxy, phenylC.sub.1-3 alkoxy or C.sub.1-6 alkyl group or a group --NR.sup.7 R.sup.8 or --CONR.sup.7 R.sup.8 ; R.sup.7 and R.sup.8, which may be the same or different, each represents a hydrogen atom or a C.sub.1-4 alkyl or C.sub.3-4 alkenyl group, or together with the nitrogen atom to which they are attached form a saturated 5 to 7 membered ring; n represents 1, 2 or 3; and A-B represents the group CH--CH.sub.2 or C.dbd.CH; and physiologically acceptable salts and solvates thereof. The compounds are potent and selective antagonists of the effect of 5-HT at 5-HT.sub.3 receptors and are useful, for example, in the treatment of psychotic disorders, anxiety, and nausea and vomiting.
本发明涉及通式(I)的化合物:##STR1## 其中Im表示公式:##STR2##的咪唑基团;R.sup.1表示氢原子或选自C.sub.1-6烷基,C.sub.3-6烯基,C.sub.3-10炔基,C.sub.3-7环烷基,C.sub.3-7环烷基C.sub.1-4烷基,苯基,苯基C.sub.1-3烷基,--CO.sub.2R.sup.5,--COR.sup.5,--CONR.sup.5R.sup.6或--SO.sub.2R.sup.5的基团;其中R.sup.5和R.sup.6,可以相同也可以不同,每个代表氢原子,C.sub.1-6烷基或C.sub.3-7环烷基,或苯基或苯基C.sub.1-4烷基,其中苯基可以选择性地被一个或多个C.sub.1-4烷基,C.sub.1-4烷氧基或羟基或卤原子取代,但有条件的是当R.sup.1代表--CO.sub.2R.sup.5或--SO.sub.2R.sup.5的基团时,R.sup.5不代表氢原子;R.sup.2,R.sup.3和R.sup.4所代表的基团中的一个是氢原子或C.sub.1-6烷基,C.sub.3-7环烷基,C.sub.3-6烯基,苯基或苯基C.sub.1-3烷基,而另外两个基团可以相同也可以不同,每个代表氢原子或C.sub.1-6烷基;Q表示氢原子或卤原子,或羟基,C.sub.1-4烷氧基,苯基C.sub.1-3烷氧基或C.sub.1-6烷基或--NR.sup.7R.sup.8或--CONR.sup.7R.sup.8的基团;其中R.sup.7和R.sup.8,可以相同也可以不同,每个代表氢原子或C.sub.1-4烷基或C.sub.3-4烯基,或与它们所连接的氮原子一起形成饱和的5到7成员环;n表示1、2或3;A-B表示CH--CH.sub.2或C.dbd.CH的基团;以及其生理上可接受的盐和溶剂。这些化合物是5-HT.sub.3受体上5-HT效应的有效和选择性拮抗剂,例如可用于治疗精神疾病、焦虑和恶心呕吐。