申请人:Pharmacia & Upjohn S.p.A.
公开号:US05783574A1
公开(公告)日:1998-07-21
Novel 5-HT.sub.3 receptor antagonist compounds having following formula (I) ##STR1## wherein n is 1, 2 or 3; each of R, R.sub.1 and R.sub.2, which may be the same or different, is hydrogen, halogen, hydroxy, cyano, C.sub.1 -C.sub.6 alkyl, CF.sub.3, C.sub.1 -C.sub.6 alkoxy, C.sub.1 -C.sub.6 alkylthio, formyl, C.sub.2 -C.sub.6 alkanoyl, carboxy, C.sub.1 -C.sub.6 alkoxy-carbonyl, nitro, --N (R.sub.4 R.sub.5) in which each of R.sub.4 and R.sub.5 independently is hydrogen, C.sub.1 -C.sub.6 alkyl, formyl or C.sub.2 -C.sub.6 alkanoyl; or a (R.sub.6 R.sub.7) N--SO.sub.2 group, in which each of R6 and R.sub.7 independently is hydrogen or C.sub.1 -C.sub.6 alkyl; R.sub.3 is an imidazolyl group of formula ##STR2## wherein each of R.sub.8 and R.sub.10 which may be the same or different is hydrogen or C.sub.1 -C.sub.6 alkyl, R.sub.9 is hydrogen, C.sub.1 -C.sub.6 alkyl or a nitrogen protecting group; and the pharmaceutically acceptable salts thereof, are disclosed.
公开了具有以下式(I)的新型5-HT.sub.3受体拮抗剂化合物
##STR1##
其中n为1、2或3;R、R.sub.1和R.sub.2中的每一个,可以相同也可以不同,是氢、卤素、羟基、氰基、C.sub.1-C.sub.6烷基、CF.sub.3、C.sub.1-C.sub.6烷氧基、C.sub.1-C.sub.6烷基硫基、甲酰基、C.sub.2-C.sub.6脂肪酰基、羧基、C.sub.1-C.sub.6烷氧羰基、硝基、--N(R.sub.4R.sub.5)其中R.sub.4和R.sub.5各自独立地是氢、C.sub.1-C.sub.6烷基、甲酰基或C.sub.2-C.sub.6脂肪酰基;或(R.sub.6R.sub.7)N--SO.sub.2基团,其中R.sub.6和R.sub.7各自独立地是氢或C.sub.1-C.sub.6烷基;R.sub.3是下列式的咪唑基团
##STR2##
其中R.sub.8和R.sub.10中的每一个,可以相同也可以不同,是氢或C.sub.1-C.sub.6烷基,R.sub.9是氢、C.sub.1-C.sub.6烷基或氮保护基;以及其药学上可接受的盐。