| 发明名称 |
Syn-isomers of 7-substituted-3-cephem-4-carboxylic acid esters |
| 摘要 |
This invention relates to novel cephem compounds of high antimicrobial activity comprising the syn-isomers of 7-substituted-3-cephem-4-carboxylic acid esters of the formula: <IMAGE> wherein R is lower alkanoyloxy (C2-C6)alkyl, isobutyryloxymethyl, 2-ethylbutyryloxymethyl or 3,3-dimethylbutyryloxymethyl, or salts thereof.
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| 申请公布号 |
US4463002(A) |
申请公布日期 |
1984.07.31 |
| 申请号 |
US19820378334 |
申请日期 |
1982.05.14 |
| 申请人 |
FUJISAWA PHARMACEUTICAL CO., LTD. |
发明人 |
TAKAYA, TAKAO;TAKASUGI, HISASHI;TSUJI, KIYOSHI;CHIBA, TOSHIYUKI |
| 分类号 |
A61K31/545;A61K31/546;A61P31/04;C07D501/20;C07D501/22;C07D501/24;(IPC1-7):A61K31/54 |
主分类号 |
A61K31/545 |
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