| 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 R1 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.< /SDOAB>
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| 申请公布号 |
CA2436863(C) |
申请公布日期 |
2007.05.22 |
| 申请号 |
CA20012436863 |
申请日期 |
2001.11.19 |
| 申请人 |
PFIZER PRODUCTS INC. |
发明人 |
ZENONI, MAURIZIO;FOGLIATO, GIOVANNI;COLBERG, JUAN CARLOS;DONADELLI, ALESSANDRO;TUCKER, JOHN LLOYD |
| 分类号 |
C07D501/08;C07D205/095;C07D277/00;C07D405/12;C07D501/00;C07D501/14;C07D501/18;C07D501/20;C07D513/04;C07F9/568;C07F9/6558 |
主分类号 |
C07D501/08 |
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