申请人:Nisshin Flour Milling Co., Ltd.
公开号:US05008266A1
公开(公告)日:1991-04-16
4(3H)-Quinazolinone derivative of formula (I) are provided. ##STR1## wherein R.sub.1 is a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group, an aryl group, a substituted aryl group, or an aralkyl group; R.sub.2 is a C.sub.1 -C.sub.6 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 R.sub.2 represents a geranyl group or a dipyridylmethyl group together with the group --(CH.sub.2).sub.n --; and X is a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group or a halogen atom, and pharmaceutically acceptable acid addition salts thereof. They are useful as antiucler agents.
提供式(I)的4(3H)-喹唑啉酮衍生物。其中,R.sub.1是氢原子,C.sub.1-C.sub.6烷基,芳基,取代芳基或芳基烷基;R.sub.2是C.sub.1-C.sub.6烷基氨基,苯基,取代苯基或含有一个或多个N、O或S作为杂原子的5-或6-成员杂环基,所述杂环基可以选择性地被取代或与苯环融合;n为1或2;或R.sub.2代表与羟基丙基基团--(CH.sub.2).sub.n --一起的蒿草醇基团或二吡啶基甲基基团;X是氢原子,C.sub.1-C.sub.6烷基或卤素原子,以及其药学上可接受的酸加盐。它们可用作抗溃疡剂。