| 发明名称 |
AZETIDINONES AND CEPHALOSPORINS OBTAINED THEREFROM |
| 摘要 |
<p>The invention concerns a process for the manufacture of 7 beta -amino-3-cephem-3-ol-4-carboxylic acid compounds by ring closure of esters of 2-[4-(substituted-thio)-3-acylamino-2-oxoazetidin-1-yl]-3-substituted- amino-crotonic acids and solvolysing the enamino group in the resulting 7 beta -acylamino-3-substituted-amino-cephem-4-carboxylic acid esters.</p> |
| 申请公布号 |
IE43703(B1) |
申请公布日期 |
1981.05.06 |
| 申请号 |
IE19760000322 |
申请日期 |
1976.02.19 |
| 申请人 |
CIBA GEIGY AG |
发明人 |
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| 分类号 |
C07D205/08;C07D205/095;C07D499/00;C07D501/04;C07D501/08;C07D501/10;C07D501/20;C07D501/59;(IPC1-7):07D501/02;07D205/04 |
主分类号 |
C07D205/08 |
| 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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