| 发明名称 |
PROCESS FOR THE PREPARATION OF A 3-VINYLCEPHEM COMPOUND |
| 摘要 |
<p>A process for preparing 3-vinyl-cephem compound of the formula (2), the process comprising the step of treating protected 3-vinyl-cephem derivative of the formula (1) in an organic solvent in the presence of perhalogenated acid and an organic protonic acid <CHEM> wherein each of R<1>, R<2> and R<3> is a hydrogen atom or arylmethyl group optionally having a substituent, provided that R<1>, R<2> and R<3> can not be a hydrogen atom at the same time. <CHEM></p> |
| 申请公布号 |
EP1273587(A1) |
申请公布日期 |
2003.01.08 |
| 申请号 |
EP20010919924 |
申请日期 |
2001.04.13 |
| 申请人 |
OTSUKA KAGAKU KABUSHIKI KAISHA |
发明人 |
KAMEYAMA, YUTAKA;FUKAE, KAZUHIRO |
| 分类号 |
A61K31/546;A61P31/04;C07D501/00;C07D501/04;C07D501/22;(IPC1-7):C07D501/04 |
主分类号 |
A61K31/546 |
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