| 发明名称 |
Intermediates and process for the production of 3-vinyl cephalosporins |
| 摘要 |
A process for the production of a 3-vinylcephalosporin compound of formula Iwherein R1 and R2 may be the same or different and denote hydrogen or an organic radical, which comprises subjecting a 3-iodomethyl-cephalosporin to a Wittig reaction in the presence of a weak base.
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| 申请公布号 |
US6248881(B1) |
申请公布日期 |
2001.06.19 |
| 申请号 |
US19970829572 |
申请日期 |
1997.03.31 |
| 申请人 |
BIOCHEMIE GMBH |
发明人 |
WIESER JOSEF;ASCHER GERD;LUDESCHER JOHANNES;STURM HERBERT |
| 分类号 |
C07D501/00;C07D501/04;C07D501/22;C07D501/24;(IPC1-7):C07D501/22 |
主分类号 |
C07D501/00 |
| 代理机构 |
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| 地址 |
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