| 发明名称 |
PROCESS FOR THE PREPARATION OF CEPHALOSPORINS |
| 摘要 |
Process for the preparation of cephem compounds of the formula <IMAGE> wherein R is optionally substituted aminothiazolyl or amino-1,2,4-thiadiazolyl, A is optionally substituted pyridinium, R1 is hydrogen or methoxy and R2 are special aliphatic substituents, by a nucleophilic replacement in the substituent in 3-position in the presence of tri-C1C4-alkyl iodosilane. |
| 申请公布号 |
DE3477784(D1) |
申请公布日期 |
1989.05.24 |
| 申请号 |
DE19843477784 |
申请日期 |
1984.05.04 |
| 申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
KIRRSTETTER, REINER, DR.;DURCKHEIMER, WALTER, DR.;LATTRELL, RUDOLF, DR.;SCHWAB, WILFRIED, DR. |
| 分类号 |
A61K31/425;A61K31/545;C07D;C07D501/00;C07D501/04;C07D501/06;C07D501/38;C07D501/46;C07D501/56;C07D501/57;C07D519/00;(IPC1-7):C07D501/46 |
主分类号 |
A61K31/425 |
| 代理机构 |
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代理人 |
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| 地址 |
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