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US4409215A 7-Acylamino-3-substituted cephalosporanic acid derivatives and processes for the preparation thereof 失效
7-酰氨基-3-取代头孢烷酸衍生物及其制备方法

7-Acylamino-3-substituted cephalosporanic acid derivatives and processes
for the preparation thereof
摘要:
The invention relates to novel 7-acylamino-3-substituted cephalosporanic acid derivatives of high antimicrobial activity, of the formula ##STR1## in which R.sup.5 is amino or a protected amino group,R.sup.2 is methoxymethyl,R.sup.3 is carboxy or a protected carboxy group, andR.sup.6 is lower alkyl, and a pharmaceutically acceptable salt thereof.
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