A cephem compound (particularly its crystal) represented by the formula [I], wherein X is CH
3
COOH, CH
3
CH
2
COOH or CH
3
CN, and n is 0 to 5, is useful as an antibacterial agent (particularly anti-MRSA agent) and shows superior quality such as high solid stability, possible long-term stable preservation and the like.
Phosphonocephem Derivates, Their Production And Use
申请人:Takeda Pharmaceutical Company Limited
公开号:EP2080765A1
公开(公告)日:2009-07-22
7β-[2(Z)-ethoxyimino-2-(5-phosphonoamino-1,2,4-thiadiazole-3-yl)acetamido]-3-[4-(1-methyl-4-pyridinio)-2-thiazolylthio]-3-cephem-4-carboxylate, its ester or its salt, which has a superior anti-bacterial activity, stability, absorbability, etc., and a pharmaceutical composition containing it, is provided.