申请人:Yamanouchi Pharmaceutical Co., Ltd.
公开号:US04977175A1
公开(公告)日:1990-12-11
4,5,6,7-Tetrahydrobenzimidazole derivatives represented by general formula (I) ##STR1## wherein groups represents the following: R.sup.1, R.sup.2, R.sup.3 : independently represent hydrogen atom, hydroxy group, a halogen atom, a lower alkyl group which may optionally be substituted with a halogen atom, a lower alkoxy group, a lower alkylthio group, an aralkyloxy group, an aryloxy group, a lower alkanoyl group, carboxy group, a lower alkoxycarbonyl group or nitro group; R.sup.4, R.sup.5, R.sup.6 : hydrogen atom or a lower alkyl group; X: oxygen atom or sulfur atom; or salts thereof which are believed to have a 5-HT.sub.3 antagonizing activity.
以通式(I)代表的4,5,6,7-四氢苯并咪唑衍生物,其中基团表示如下:R.sup.1、R.sup.2、R.sup.3:分别表示氢原子、羟基、卤原子、可能被卤原子取代的低烷基基团、低烷氧基团、低烷硫基团、芳基氧基团、芳基氧基团、低烷酰基基团、羧基、低烷氧羰基团或硝基基团;R.sup.4、R.sup.5、R.sup.6:氢原子或低烷基基团;X:氧原子或硫原子;或其盐,据信具有5-HT.sub.3拮抗活性。