申请人:Fujisawa Pharmaceutical Co., Ltd.
公开号:US05296487A1
公开(公告)日:1994-03-22
A compound of the formula: ##STR1## in which R.sup.1 and R.sup.2 are each hydrogen, halogen, nitro, amino, protected amino, hydroxyamino, lower alkyl, hydroxy, protected hydroxy, sulfamoyl, carboxy, protected carboxy, mercapto, optionally substituted heterocyclic-carbonyl, optionally substituted heterocyclic-(lower)alkyl, lower alkylthio, hydroxy(lower)alkyl or protected hydroxy(lower)alkyl, R.sup.3 is aryl which may have suitable substituent(s), and A is lower alkylene, or pharmaceutically acceptable salts thereof.
化合物的式子为:##STR1## 其中R.sup.1和R.sup.2可以是氢、卤素、硝基、氨基、保护氨基、羟氨基、低级烷基、羟基、保护羟基、磺酰基、羧基、保护羧基、巯基、可选取代的杂环酰基、可选取代的杂环-(低级)烷基、低级烷基硫、羟基(低级)烷基或保护羟基(低级)烷基,R.sup.3是苯基,可以有适当的取代基,A是低级亚烷基,或其药学上可接受的盐。