申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP0386689A1
公开(公告)日:1990-09-12
A cephem compound of the formula :
wherein
R1 is amino or a protected amino,
R2 is ethyl, propyl or lower alkenyl,
R3 is COOe, carboxy or a protected carboxy, R4 is hydroxy(lower)alkyl or protected hydroxy(lower)alkyl,
RS is amino or a protected amino,
X⊖ is an anion, and
n is 0 or 1,
or,
R1, R3, RS, Xe and n are each as defined above,
R2 is lower alkyl, and
R4 is 3-hydroxypropyl,
with proviso that
(i) when R3 is COOe, then n is 0, and
(ii) when R3 is carboxy or a protected carboxy, then n is 1, or a pharmaceutically acceptable salt thereof, processes for their preparation and pharmaceutical compositions comprising them as an active ingredient in admixture with pharmaceutically acceptable carriers.
一种分子式为......的 cephem 化合物
其中
R1 是
氨基或受保护的
氨基
R2 是乙基、丙基或低级烯基
R3 是 COOe、羧基或受保护的羧基,R4 是羟基(低级)烷基或受保护的羟基(低级)烷基、
RS 是
氨基或受保护的
氨基、
X⊖ 是阴离子,以及
n 为 0 或 1、
或
R1、R3、RS、Xe 和 n 均如上定义、
R2 是低级烷基,以及
R4 是 3-羟基丙基、
但条件是
(i) 当 R3 是 COOe 时,n 为 0,和
(ii) 当 R3 为羧基或受保护的羧基时,则 n 为 1,或其药学上可接受的盐、其制备方法以及将其作为活性成分与药学上可接受的载体混合的药物组合物。