申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP0042154A1
公开(公告)日:1981-12-23
New cephem compounds of the formula:
wherein
R1 is amino or a protected amino group;
R2 is hydrogen, lower aliphatic hydrocarbon group which may be substituted with suitable substituent(s), cyclo(lower)alkyl or cyclo(lower)alkenyl; and
R3 is a thiazolio group which may be substituted with suitable substituent(s) or a pyridinio group substituted with substituent(s) selected from the group consisting of halogen, cyano, hydroxy, amino, acylamino, lower alkanoyl, hydroxycarbamoyl, alkylcarbamoyl, carboxy, protected carboxy, lower alkyl, hydroxy(lower)alkyl, sulfo(lower)-alkyl, protected amino(lower)alkyl, amino(lower)alkyl, carboxy(lower)alkyl and hydroxyimino(lower)alkyl; and pharmaceutically acceptable salts thereof, and process for their preparation, and also a pharmaceutical composition comprising, as an effective ingredient, the above compound in association with a pharmaceutically acceptable, substantially nontoxic carrier or excipient. The invention also relates to the starting compounds.
and their preparation.
新的 Cephem 化合物,其式如下
式中
R1 是氨基或受保护的氨基;
R2 是氢、可被适当取代基取代的低脂族烃基、环(低)烷基或环(低)烯基;以及
R3 是可被适当取代基取代的噻唑基或被选自卤素、氰基、羟基、氨基、酰氨基、低级烷酰基、羟基氨基甲酰基、烷基氨基甲酰基、羧基、受保护羧基、低级烷基、羟基(低级)烷基、磺酰(低级)烷基、受保护氨基(低级)烷基、氨基(低级)烷基、羧基(低级)烷基和羟基亚氨基(低级)烷基组成的取代基取代的吡啶基;和它们的药学上可接受的盐,以及它们的制备工艺,还有一种药物组合物,其中作为有效成分,上述化合物与药学上可接受的、基本上无毒的载体或赋形剂结合在一起。本发明还涉及起始化合物。
及其制备方法。