申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP0426021A1
公开(公告)日:1991-05-08
A compound of the formula :
wherein R¹ is lower alkyl, halo(lower)alkyl, cyclo(lower)alkyl or lower alkylthio,
R² is hydrogen or imino-protective group,
R³ is hydrogen or halogen,
A is lower alkylene, and
is a group of the formula :
in which
X¹, X², X³ and X⁴ are each
N or CR⁴, in which R⁴ is hydrogen, lower alkyl, lower alkoxy, halogen, halo(lower)alkyl, esterified carboxy, halo(lower)alkoxy or hydroxy,
provided that at least one of X¹, X², X³ and X⁴ is N,
and pharmaceutically acceptable salts thereof, processes for their preparation and pharmaceutical compositions comprising them as an active ingredient in admixture with a pharmaceutically acceptable carrier or excipient.
该化合物的结构式如下:其中R¹为低碳烷基、卤代低碳烷基、环状低碳烷基或低碳硫代基,R²为氢或亚胺保护基,R³为氢或卤素,A为低碳烷基,是一个结构式中的基团:其中X¹、X²、X³和X⁴分别为N或CR⁴,其中R⁴为氢、低碳烷基、低碳氧基、卤素、卤代低碳烷基、酯化羧基、卤代低碳氧基或羟基,但至少其中一个为N,并且其药学上可接受的盐,以及其制备方法和包含它们作为活性成分与药学上可接受的载体或赋形剂混合的药物组合物。