| 发明名称 |
Process and ester derivatives useful for preparation of cephalosporins |
| 摘要 |
This invention relates a process for preparing a compound of formula (I) wherein R<1 >is para-nitrobenzyl or allyl; and X is halo, which is useful to prepare 3-cyclic-ether-substituted cephalosporins, from trimethylphosphinic compounds. This invention also relates to compounds useful in such process.
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| 申请公布号 |
US2004267008(A1) |
申请公布日期 |
2004.12.30 |
| 申请号 |
US20040781158 |
申请日期 |
2004.02.17 |
| 申请人 |
PFIZER INC |
发明人 |
COLBERG JUAN C.;TUCKER JOHN L.;ZENONI MAURIZIO;FOGLIATO GIOVANNI;DONADELLI ALESSANDRO;NAGAKURA ISAO;MORITA HIROMASA;MATSUO HIDEYUKI |
| 分类号 |
C07D205/095;C07D405/12;C07D501/00;C07D501/08;C07D501/14;C07D501/18;C07D501/20;C07D513/04;C07F9/568;C07F9/6558;(IPC1-7):C07D501/14 |
主分类号 |
C07D205/095 |
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