7-Amino 2-lower alkyl-2 or 3-cephem-4-carboxylic acid derivatives and
申请人:Fujisawa Pharmaceutical Co., Ltd.
公开号:US04113940A1
公开(公告)日:1978-09-12
A compound of the formula ##STR1## wherein R.sup.1 is amino or substituted amino, R.sup.2 is carboxy or protected carboxy, R.sup.3 is lower alkyl and X is --S-- or ##STR2## or a pharmaceutically acceptable salt thereof is effective against various microorganisms.
2-Lower alkyl-2 or 3-cephem-4-carboxylic acid derivatives
申请人:Fujisawa Pharmaceutical Co., Ltd.
公开号:US04308380A1
公开(公告)日:1981-12-29
A compound of the formula ##STR1## wherein R.sup.1 is amino or substituted amino, R.sup.2 is carboxy or protected carboxy, R.sup.3 is lower alkyl and X is --S-- or ##STR2## or a pharmaceutically acceptable salt thereof is effective against various microorganisms.