NOVEL 3-ACYLOXYMETHYL-CEPHEM COMPOUNDS

Novel 3-acyloxymethyl-cephem compounds of the formula: wherein R1 is hydrogen or an acyl group; W is acetonyl, or a group represented by -X-COOH or -X-OH (X is an organic residue) or salts thereof were found to be useful as starting materials for preparing cephalosporins of the formula: wherein R3 s...

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Bibliographische Detailangaben
Hauptverfasser:	SUSUMU TSUSHIMA, MITSURU SHIRAISHI
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
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Beschreibung
Zusammenfassung:	Novel 3-acyloxymethyl-cephem compounds of the formula: wherein R1 is hydrogen or an acyl group; W is acetonyl, or a group represented by -X-COOH or -X-OH (X is an organic residue) or salts thereof were found to be useful as starting materials for preparing cephalosporins of the formula: wherein R3 stands for a residue of a nucleophilic compound and R1 has the same meaning as above.