3,7-Disubstituted-2- or -3-cephem-4-carboxylic acid compounds, pharmaceutical compositions containing them and processes for the preparation thereof
申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP0010313A1
公开(公告)日:1980-04-30
New 3,7-disubstituted-2 or 3-cephem-4-carboxylic acid compounds of the formula:
wherein
R1 is amino or a substituted amino group;
R2 is carboxy or a protected carboxy group;
the group of the formula:
is di(lower)alkylamino (lower)alkylamino, a N-containing heterocyclic (lower)alkylamino group which may have suitable substituent(s), a heterocyclic group containing 2 to 4 nitrogen atoms which may have suitable substituent(s) or hydroxypiperidino; and X is -S- or
e.g. 7-[2-methoxyimino-2- (2-aminothiazol-4-yl) acetamido] -3-(4-methyl-1-piperazinyl) carbonyloxymethyl-3-cephem -4-carboxylic acid (syn isomer); pharmaceutically acceptablesalts thereof; and processes for their preparation. The invention also relates to pharmaceutical compositions comprising, as an effective ingredient, the above compounds in association with a pharmaceutically acceptable; substantially nontoxic carrier or excipient; and to a process for their preparation.
式中的新的 3,7-二取代-2 或 3-头孢-4-羧酸化合物:
其中
R1 是氨基或取代的氨基
R2 是羧基或受保护的羧基;
式中的基团
是二(低级)烷基氨基(低级)烷基氨基、可有适当取代基的含 N 杂环(低级)烷基氨基基团、可有适当取代基的含 2 至 4 个氮原子的杂环基团或羟基哌啶基; X 是-S-或
例如,7-[2-甲氧基亚氨基-2-(2-氨基噻唑-4-基)乙酰氨基]-3-(4-甲基-1-哌嗪基)羰氧甲基-3-头孢-4-羧酸(同分异构体);其药学上可接受的盐类;及其制备工艺。本发明还涉及由上述化合物作为有效成分与药学上可接受的、基本上无毒的载体或赋形剂结合而成的药物组合物,以及其制备工艺。