Title of Invention | A PROCESS FOR PREPARING A COMPOUND OF FORMULA ( I ) FOR PREPARATION OF CEPHALOSPORINS |
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Abstract | The 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. |
Full Text | N/A |
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473-mumnp-2003-cancelled pages(24-11-2004).pdf
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Patent Number | 214038 | ||||||||||||||||||
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Indian Patent Application Number | 473/MUMNP/2003 | ||||||||||||||||||
PG Journal Number | 13/2008 | ||||||||||||||||||
Publication Date | 28-Mar-2008 | ||||||||||||||||||
Grant Date | 24-Jan-2008 | ||||||||||||||||||
Date of Filing | 05-May-2003 | ||||||||||||||||||
Name of Patentee | PFIZER PRODUCTS INC. | ||||||||||||||||||
Applicant Address | EASTERN POINT ROAD, GROTON, CONNECTICUT 06340, USA | ||||||||||||||||||
Inventors:
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PCT International Classification Number | C07D501/08 | ||||||||||||||||||
PCT International Application Number | PCT/IB01/02181 | ||||||||||||||||||
PCT International Filing date | 2001-11-19 | ||||||||||||||||||
PCT Conventions:
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