申请人:Glaxo Group Limited
公开号:US04939144A1
公开(公告)日:1990-07-03
The invention relates to ketones of the general formula (I): ##STR1## wherein Im represents an imidazolyl group of the formula: ##STR2## one of the groups represented by R.sup.1, R.sup.2 and R.sup.3 is a hydrogen atom or a C.sub.1-6 alkyl, C.sub.3-7 cycloalkyl, C.sub.3-6 alkenyl, phenyl or phenyl C.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; n represents 1, 2 or 3; Q represents a hydrogen atom, a halogen atom, or a hydroxy, C.sub.1-4 alkoxy, phenyl C.sub.1-3 alkoxy or C.sub.1-6 alkyl group, or a group --NR.sup.4 R.sup.5 or --CONR.sup.4 R.sup.5, (wherein R.sup.4 and R.sup.5, 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); and X represents an oxygen or a sulphur atom, or, when Im represents an imidazolyl group of formula (c) and n represents 1 or 3, X may also represent the group NR.sup.6, wherein R.sup.6 represents a hydrogen atom or a group selected from C.sub.1-10 alkyl, C.sub.3-6 alkenyl, C.sub.3-10 alkynyl, C.sub.3-7 cycloalkyl, C.sub.3-7 cycloalkyl C.sub.1-4 alkyl, phenyl, phenyl C.sub.1-3 alkyl, --CO.sub.2 R.sup.7, --COR.sup.7, --CONR.sup.7 R.sup.8 or --SO.sub.2 R.sup.7 (wherein R.sup.7 and R.sup.8, 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 phenyl C.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.7 does not represent a hydrogen atom when R.sup.6 represents a group --CO.sub.2 R.sup.7); and physiologically acceptable salts and solvates thereof. The compounds are potent and selective antagonists of the effect of 5-HT and 5-HT.sub.3 receptors and are useful, for example, in the treatment of psychotic disorders, anxiety, and nausea and vomiting.
本发明涉及一般式(I)的酮类化合物:##STR1## 其中Im表示公式:##STR2## 的咪唑基团,R.sup.1、R.sup.2和R.sup.3中的一个表示氢原子或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烷基基团,另外两个可能相同也可能不同的基团表示氢原子或C.sub.1-6烷基基团;n表示1、2或3;Q表示氢原子、卤素原子或羟基、C.sub.1-4烷氧基、苯基C.sub.1-3烷氧基或C.sub.1-6烷基基团,或者表示--NR.sup.4 R.sup.5或--CONR.sup.4 R.sup.5基团(其中R.sup.4和R.sup.5可能相同也可能不同,分别表示氢原子或C.sub.1-4烷基或C.sub.3-4烯基基团,或者与它们连接的氮原子形成饱和的5到7环);X表示氧或硫原子,或者当Im表示公式(c)的咪唑基团且n表示1或3时,X还可以表示基团NR.sup.6,其中R.sup.6表示氢原子或从C.sub.1-10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.2 R.sup.7、--COR.sup.7、--CONR.sup.7 R.sup.8或--SO.sub.2 R.sup.7(其中R.sup.7和R.sup.8可能相同也可能不同,分别表示氢原子、C.sub.1-6烷基或C.sub.3-7环烷基,或苯基或苯基C.sub.1-4烷基基团,其中苯基基团可以选择性地被一个或多个C.sub.1-4烷基、C.sub.1-4烷氧基或羟基基团或卤素原子取代,但R.sup.6表示基团--CO.sub.2 R.sup.7时,R.sup.7不表示氢原子);以及其生理上可接受的盐和溶剂物。这些化合物是5-HT和5-HT.sub.3受体效应的有效选择性拮抗剂,例如在治疗精神疾病、焦虑和恶心呕吐方面有用。