申请人:Richter Gedeon Vegyeszeti Gyar RT
公开号:US05106846A1
公开(公告)日:1992-04-21
The present invention relates to compounds of the general formula (I), ##STR1## wherein R.sub.1 stands for hydrogen, halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy or nitro group; R.sub.2 means a C.sub.1-7 alkyl group optionally substituted by: a hydroxyl or oxo group; or an ester group containing 1 to 4 carbon atoms in the alkoxy moiety; or a C.sub.1-4 alkoxy, cyano, amino, C.sub.1-4 alkylamino, or dialkylamino group; or an acyl group containing 1 to 7 carbon atoms in the alkyl moiety; or R.sub.2 means an aryl-C.sub.1-7 alkyl group optionally bearing the substituents defined above for R.sub.2 in the alkyl chain and optionally substituted by halogen, nitro, C.sub.1-4 alkyl or alkoxy group in the benzene ring; or R.sub.2 represents an allyl, phenylallyl or phenylsulfonyl group, both latter groups optionally being substituted by halogen or a C.sub.1-4 alkyl group in the benzene ring; or R.sub.2 stands for a carbamoyl group substituted by one or two C.sub.1-4 alkyl group(s) or phenyl group on the nitrogen atom. The compounds according to the invention show a cytoprotective and acid secretion-inhibiting action and are effective against gastric and duodenal ulcers.
本发明涉及一般式(I)的化合物,其中R.sub.1代表氢、卤素、C.sub.1-4烷基、C.sub.1-4烷氧基或硝基基团;R.sub.2表示C.sub.1-7烷基,该烷基可以选择性地被羟基或氧代基取代;或含有1至4个碳原子的烷氧基的酯基团;或C.sub.1-4烷氧基、氰基、氨基、C.sub.1-4烷基氨基或二烷基氨基基团;或在烷基中含有1至7个碳原子的酰基基团;或R.sub.2表示芳基-C.sub.1-7烷基基团,该基团可以选择性地带有上述R.sub.2在烷基链中定义的取代基,并且可以在苯环中用卤素、硝基、C.sub.1-4烷基或烷氧基基团进行取代;或R.sub.2表示烯丙基、苯基烯丙基或苯基磺酰基基团,后两个基团可以选择性地在苯环中用卤素或C.sub.1-4烷基基团进行取代;或R.sub.2表示在氮原子上被一个或两个C.sub.1-4烷基或苯基取代的氨基甲酰基团。根据本发明的化合物具有细胞保护和抑制酸分泌的作用,并且对胃和十二指肠溃疡有效。