| 发明名称 |
Process for preparing 7-aminocephalosporanic acid derivatives |
| 摘要 |
The use of an iodolactone as an esterifying derivative in the preparation of lactonyl esters of cephalosporins substantially reduces double bond migration during the esterification reaction.
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| 申请公布号 |
US4115646(A) |
申请公布日期 |
1978.09.19 |
| 申请号 |
US19770826371 |
申请日期 |
1977.08.22 |
| 申请人 |
BEECHAM GROUP LIMITED |
发明人 |
BENTLEY, PETER HUBERT;BROOKS, GERALD |
| 分类号 |
C07D501/20;C07D501/36;(IPC1-7):C07D501/36 |
主分类号 |
C07D501/20 |
| 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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