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.
本发明涉及通式(I)的新型化合物、
其中
R₁ 和 R₂ 互不独立地代表氢 C₁₋₄烷基、苯基、苯基-C₁₋₄烷基、
吡啶基或
吡啶基-C₁₋₄烷基;
E 指含有 1 至 6 个碳原子的直链或支链饱和烃链;
R₃ 代表被 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)
氨基正取代的苯基,并可选择进一步被卤素取代、C₁₋₄烷基、C₁₋₄烷氧基或C₂₋₅烷酰氧基;或由卤素、C₁₋₄烷基、C₂₋₅烷氧基、C₂₋₅烷酰氧基或苯基-C₁₋₄烷氧基任选单取代或多取代的
吡啶基,以及它们的酸加成盐和这些化合物的同分异构体。
本发明的化合物具有抑制胃酸分泌和细胞保护作用,可用于治疗胃肠道系统溃疡。