申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP0069872A2
公开(公告)日:1983-01-19
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;
R3 is lower alkyl which may be substituted with suitable substituents(s);
R3a is hydrogen, lower alkyl or amino; and
R3b is hydrogen or lower alkyl; and
pharmaceutically acceptable salts thereof, and processes for their preparation and a pharmaceutical antibacterial composition comprising them in association with a pharmaceutical antibacterial composition comprising a compound of claim 1 in association with a pharmaceutically acceptable, substantially non-toxic carrier or excipient.
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级脂肪烃基、环(低)烷基或环(低)烯基;
R3 是可被适当取代基取代的低级烷基;
R3a 是氢、低级烷基或氨基;以及
R3b 是氢或低级烷基;以及
它们的药学上可接受的盐,以及它们的制备方法和包含它们的药用抗菌组合物,该组合物包含权利要求 1 的化合物与药学上可接受的、基本上无毒的载体或赋形剂。