申请人:Richter Gedeon Vegyeszeti Gyar RT
公开号:US05037830A1
公开(公告)日:1991-08-06
The present invention relates to novel compounds of the formula (I), ##STR1## wherein R.sub.1 and R.sub.2 stand independently from each other, for hydrogen, C.sub.1-4 alkyl, phenyl, phenyl-C.sub.1-4 alkyl, piridyl or piridyl-C.sub.1-4 alkyl group; E means a straight or branched, saturated hydrocarbon chain containing 1 to 6 carbon atoms; R.sub.3 represents: a phenyl group ortho-substituted by a C.sub.2-5 alkanoylamino, N-C.sub.2-5 alkanoyl-N-C.sub.1-4 alkylamino or di(C.sub.1-4 alkyl)amino group and optionally further substituted by halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy or C.sub.2-5 alkanoyloxy group; or a pyridyl group optionally mono- or polysubstituted by halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, C.sub.2-5 alkanoyloxy or phenyl-C.sub.1-4 alkoxy group as well as their acid addition salts and tautomeric forms of these compounds. The compounds according to the invention show gastric acid secretion-inhibiting and cytoprotective effects and are useful for the treatment of ulcers of the gastrointestinal system.
本发明涉及一种新的化合物,其化学式为(I),其中R1和R2分别独立地表示氢、C1-4烷基、苯基、苯基-C1-4烷基、吡啶基或吡啶基-C1-4烷基基团;E表示含1至6个碳原子的直链或支链饱和碳氢链;R3表示:苯基,其邻位取代为C2-5烷酰氨基、N-C2-5烷酰基-N-C1-4烷基氨基或二(C1-4烷基)氨基基团,并且可以进一步取代为卤素、C1-4烷基、C1-4烷氧基或C2-5烷酰氧基;或吡啶基,可以选择单或多取代为卤素、C1-4烷基、C1-4烷氧基、C2-5烷酰氧基或苯基-C1-4烷氧基基团,以及这些化合物的酸加合物和互变异构体。本发明的化合物显示出抑制胃酸分泌和细胞保护作用,可用于治疗胃肠系统溃疡。