发明名称 |
Cephalosporin derivatives |
摘要 |
A cephalosporin derivative represented by the formula <IMAGE> wherein R1 is a hydrogen atom or a protecting group of the amino group, R2 is a hydrogen atom or a protecting group of the hydroxyl group, R3 is a hydrogen atom or a protecting group of the carboxyl group, X is a halogen atom, a cyano group, a vinyl group, a lower alkoxy group having 1 to 4 carbon atoms or a lower alkylthio group having 1 to 4 carbon atoms and n is an integer of 1 to 3, and a non-toxic salt thereof are useful as antibacterial agents for oral administration.
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申请公布号 |
US4921953(A) |
申请公布日期 |
1990.05.01 |
申请号 |
US19890309160 |
申请日期 |
1989.02.13 |
申请人 |
TAISHO PHARMACEUTICAL CO., LTD. |
发明人 |
YOKOO, CHIHIRO;ONODERA, AKIRA;FUKUSHIMA, HIROSHI;WATANABE, YOSHIAKI;SOTA, KAORU |
分类号 |
A61K31/545;C07D501/36;C07D501/59 |
主分类号 |
A61K31/545 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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