申请人:Fujisiwa Pharmaceutical Co., Ltd.
公开号:US04857513A1
公开(公告)日:1989-08-15
A compound of the formula: ##STR1## wherein R.sup.1 --A-- is a group of the formula: ##STR2## in which R.sup.1 is aryl or a heterocyclic group, each of which may be substituted with substituent(s) selected from the group consisting of lower alkyl, lower alkoxy, lower alkylthio, halo(lower)alkyl, acyl, acylamino and halogen, or lower alkyl which may be substituted with a heterocyclic group optionally substituted with acyl, and X is O or S, and R.sup.2 is hydrogen or lower alkyl, provided that when R.sup.1 is lower alkyl, then R.sup.1 --A-- is a group of the formula: ##STR3## in which R.sup.1 and X are each as defined above, and pharmaceutically acceptable salts thereof, processes for the preparation thereof and pharmaceutical composition comprising the same.
化合物的公式为:## STR1 ##,其中R.sup.1--A--是以下式子的基团:## STR2 ##,其中R.sup.1是芳基或杂环基团,每个基团可以被下列取代基取代:低烷基,低烷氧基,低烷硫基,卤代(低)烷基,酰基,酰胺基和卤素,或者可以被取代的杂环基,该杂环基可选择被酰基取代,X为O或S,R.sup.2为氢或低烷基,但当R.sup.1为低烷基时,R.sup.1--A--是以下式子的基团:## STR3 ##,其中R.sup.1和X的定义如上所述,以及其药学上可以接受的盐,制备过程和包含其的制药组合物。