The present invention relates to novel compounds of the general formula (I),
wherein
R₁ and R₂ stand independently from each other, for hydrogen C₁₋₄alkyl, phenyl, phenyl-C₁₋₄alkyl, piridyl or piridyl-C₁₋₄alkyl group;
E means a straight or branched, saturated hydrocarbon chain containing 1 to 6 carbon atoms;
R₃ represents: a phenyl group ortho-substituted by a C₂₋₅alkanoylamino, N-C₂₋₅alkanoyl-N-C₁₋₄alkylamino or di(C₁₋₄alkyl)amino group and optionally further substituted by halogen, C₁₋₄alkyl, C₁₋₄alkoxy or C₂₋₅alkanoyloxy group; or a pyridyl group optionally mono- or polysubstituted by halogen, C₁₋₄alkyl, C₁₋₄alkoxy, C₂₋₅alkanoyloxy or phenyl-C₁₋₄alkoxy 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.
本发明涉及一般式(I)的新化合物,其中R₁和R₂分别代表氢、C₁₋₄烷基、苯基、苄基、
吡啶基或
吡啶基-C₁₋₄烷基;E表示含有1至6个碳原子的直链或支链饱和碳氢链;R₃代表:邻位被C₂₋₅烷酰胺基、N-C₂₋₅烷酰基-N-C₁₋₄烷基胺基或二(C₁₋₄烷基)
氨基基取代的苯基,并可选择进一步被卤素、C₁₋₄烷基、C₁₋₄烷氧基或C₂₋₅烷酰氧基取代;或者是
吡啶基,可选择被卤素、C₁₋₄烷基、C₁₋₄烷氧基、C₂₋₅烷酰氧基或苯基-C₁₋₄烷氧基单取代或多取代。此外,本发明还涉及这些化合物的酸盐和其异构体形式。根据本发明的化合物显示出抑制胃酸分泌和细胞保护作用,可用于治疗消化系统溃疡。