Preparation of cephalosporin antibiotic using syn-isomer of thiazolyl intermediate

Preparation of cephalosporin antibiotic using syn-isomer of thiazolyl intermediate

The present invention provides an aqueous acylation process for the preparation of antibiotic, cefepime dihydrochloride hydrate which is substantially free of the anti-isomer and the DELTA isomer comprising the N-acylation of 7-amino-3-[(1-methyl-1-pyrrolidinio)-methyl]ceph-3-em-4-carboxylate with t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: GARY M.F LIM JOHN M. ROUBIE
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
ORGANIC CHEMISTRY
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS
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Beschreibung
Zusammenfassung:The present invention provides an aqueous acylation process for the preparation of antibiotic, cefepime dihydrochloride hydrate which is substantially free of the anti-isomer and the DELTA isomer comprising the N-acylation of 7-amino-3-[(1-methyl-1-pyrrolidinio)-methyl]ceph-3-em-4-carboxylate with the syn-isomer of 2-(2-aminothiazol-4-yl)-2-methoxyimino acetyl chloride hydrochloride.