4 (3H)-Quinazolinone derivatives, processes for their preparation and pharmaceutical compositions
申请人:NISSHIN FLOUR MILLING CO., LTD.
公开号:EP0276825A1
公开(公告)日:1988-08-03
4(3H)-Quinazolinone derivatives of formula (I) are provided.
wherein R₁ is a hydrogen atom, a C₁-C₆ alkyl group, an aryl group, a substituted aryl group, or an aralkyl group; R₂ is a C₁-C₆ alkylamino group, a phenyl group, a substituted phenyl group, or a 5- or 6-membered heterocyclic group containing one or more N, O or S as a hetero atom or atoms, said heterocyclic group optionally being substituted or fused with a benzene ring; n is 1 or 2; or R₂ represents a geranyl group or a dipyridylmethyl group together with the group -(CH₂)n-; and X is a hydrogen atom, a C₁-C₆ alkyl group or a halogen atom, and pharmaceutically acceptable acid addition salts thereof.
They are useful as antiulcer agents.
提供了式(I)的4(3H)-喹唑啉酮衍生物。
其中 R₁ 是氢原子、C₁-C₆ 烷基、芳基、取代的芳基或芳烷基;R₂ 是 C₁-C₆ 烷胺基、苯基、取代的苯基或含有一个或多个 N、O 或 S 作为杂原子的 5 或 6 元杂环基团,所述杂环基团可选择被苯环取代或与苯环融合;n 是 1 或 2;或 R₂ 代表香叶基团或二吡啶基甲基,连同基团 -(CH₂)n-;以及 X 是氢原子、C₁-C₆ 烷基或卤素原子,及其药学上可接受的酸加成盐。
它们可用作抗溃疡剂。