Cephem compounds, processes for their preparation and pharmaceutical compositions containing them
申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP0007633A2
公开(公告)日:1980-02-06
A compound of the formula:
wherein R1 is amino or protected amino,
R2 is lower alkyl substituted with a substituent selected from the groups consisting of cyano, carbamoyl, hydroxy, protected hydroxy. amino. protected amino, lower alkoxy, lower alkylthio, lower alkenylthio, aryl which may have one or more suitable substituent(s). and heterocyclic group which may have one or more suitable substituent(s),
R3 is carboxy or functionally modified carboxy, and
R4 is hydrogen or halogen
and its pharmaceutically acceptable salt and pharmaceutically acceptable bioprecursor thereof and process for their preparation.
The invention also relates to a pharmaceutical composition comprising. as an effective ingredient, the above com. pound in association with a pharmaceutically acceptable, substantially nontoxic carrier or excipient. and to a method for treating an infectious disease caused by pathogenes, which comprises administering the above compound to infected human being or animals.
式中的化合物:
其中 R1 是氨基或保护氨基、
R2是被选自以下组别的取代基取代的低级烷基:氰基、氨基甲酰基、羟基、受保护羟基、氨基、受保护氨基、低级烷氧基、低级烷硫基、低级烯硫基、可具有一个或多个合适取代基的芳基和可具有一个或多个合适取代基的杂环基、
R3 是羧基或官能修饰的羧基,以及
R4 是氢或卤素
及其药学上可接受的盐和药学上可接受的生物前体及其制备工艺。
本发明还涉及一种药物组合物,其有效成分包括与药学上可接受的、基本上无毒的载体或赋形剂一起使用的上述化合物;本发明还涉及一种治疗由病原体引起的传染病的方法,该方法包括将上述化合物施用于受感染的人或动物。