Title:
PROCESS AND ESTER DERIVATIVES USEFUL FOR PREPARATION OF CEPHALOSPORINS
Document Type and Number:
WIPO Patent Application WO2002046199
Kind Code:
A8
Abstract:
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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Inventors:
COLBERG JUAN CARLOS (US)
TUCKER JOHN LLOYD (US)
ZENONI MAURIZIO (IT)
FOGLIATO GIOVANNI (IT)
DONADELLI ALESSANDRO (IT)
TUCKER JOHN LLOYD (US)
ZENONI MAURIZIO (IT)
FOGLIATO GIOVANNI (IT)
DONADELLI ALESSANDRO (IT)
Application Number:
PCT/IB2001/002181
Publication Date:
June 12, 2003
Filing Date:
November 19, 2001
Export Citation:
Assignee:
PFIZER PROD INC (US)
COLBERG JUAN CARLOS (US)
TUCKER JOHN LLOYD (US)
ZENONI MAURIZIO (IT)
FOGLIATO GIOVANNI (IT)
DONADELLI ALESSANDRO (IT)
COLBERG JUAN CARLOS (US)
TUCKER JOHN LLOYD (US)
ZENONI MAURIZIO (IT)
FOGLIATO GIOVANNI (IT)
DONADELLI ALESSANDRO (IT)
International Classes:
C07D205/095; C07D405/12; C07D501/00; C07D501/08; C07D501/14; C07D501/18; C07D501/20; C07D513/04; C07F9/568; C07F9/6558; (IPC1-7): C07D501/08; C07D501/18; C07D501/20; C07D405/12; C07F9/568; C07D205/095; C07D513/04
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