申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP0436157A1
公开(公告)日:1991-07-10
A compound of the formula :
in which R¹ and R² are each hydrogen, halogen, nitro, amino protected amino, hydroxyamino, lower alkyl, hydroxy, protected hydroxy, sulfamoyl, carboxy, protected carboxy, mercapto, heterocyclic-carbonyl, heterocyclic-(lower)alkyl, lower alkylthio, hydroxy(lower)alkyl or protected hydroxy(lower)alkyl,
R³ is aryl which may have suitable substituent(s), and
A is lower alkylene,
or pharmaceutically acceptable salts thereof, processes for their preparation and pharmaceutical composition comprising them as an active ingredient in admixture with a pharmaceutically acceptable carrier or excipient.
式中的化合物:
其中 R¹ 和 R² 分别为氢、卤素、硝基、受保护氨基、羟基氨基、低级烷基、羟基、受保护羟基、氨基磺酰基、羧基、受保护羧基、巯基、杂环-羰基、杂环-(低级)烷基、低级烷硫基、羟基(低级)烷基或受保护羟基(低级)烷基、
R³ 是芳基,可带有合适的取代基,以及
A 是低级亚烷基、
或它们的药学上可接受的盐、它们的制备方法以及由它们作为活性成分与药学上可接受的载体或赋形剂混合而成的药物组合物。