METHOD OF PRODUCING ESTERS OF S-EPIMER OF 7BETA-MALONAMIDO-7ALPHA-METHOXY-3-(1-METHYLTETRAZOL-5-ULTHIOMETHYL)-1-DETHIA-1-OXA-3-CEPHEM-4-CARBOXYLIC ACID

METHOD OF PRODUCING ESTERS OF S-EPIMER OF 7BETA-MALONAMIDO-7ALPHA-METHOXY-3-(1-METHYLTETRAZOL-5-ULTHIOMETHYL)-1-DETHIA-1-OXA-3-CEPHEM-4-CARBOXYLIC ACID

A compound represented by the formula (II) epimerizes by the action of a base and the product is precipitated for shift-wherein Ar is an optionally substituted aryl or heterocyclic group; Tet is an optionally substituted tetrazolyl group and B1 and B2 each is ing the equilibrium to yield the corresp...

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Bibliographische Detailangaben
Hauptverfasser: FUMIKHIKO VATANABE,JP, MITSUAKI OKHTANI,JP, KHIROSI ONOUE,JP, MASAYUKI NARISADA,JP
Format: Patent
Sprache:eng ; rus
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Zusammenfassung:A compound represented by the formula (II) epimerizes by the action of a base and the product is precipitated for shift-wherein Ar is an optionally substituted aryl or heterocyclic group; Tet is an optionally substituted tetrazolyl group and B1 and B2 each is ing the equilibrium to yield the corresponding epimer represented by the formula (I):an ester forming group in the field of penicillin or cephalosporin chemistry.