PROCESS FOR THE PREPARATION OF 3'-BROMO-SUBSTITUTED DEACETOXYCEPHALOSPORANIC ACID SULPHOXIDE DERIVATIVES

PROCESS FOR THE PREPARATION OF 3'-BROMO-SUBSTITUTED DEACETOXYCEPHALOSPORANIC ACID SULPHOXIDE DERIVATIVES

ABSTRACT OF THE DISCLOSURE 3'-Bromo-substituted deacetoxycephalosporanic acid sulphoxide derivatives are prepared by silylating the carboxy group (in order to protect same) of a 3'-unsubstituted deacetoxycephalosporanic acid sulphoxide derivative in an inert anhydrous organic solvent, and...

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Bibliographische Detailangaben
Hauptverfasser: BRUYNES, CORNELIS A, JURRIENS, THEODORUS K
Format: Patent
Sprache:eng ; fre
Schlagworte:
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Zusammenfassung:ABSTRACT OF THE DISCLOSURE 3'-Bromo-substituted deacetoxycephalosporanic acid sulphoxide derivatives are prepared by silylating the carboxy group (in order to protect same) of a 3'-unsubstituted deacetoxycephalosporanic acid sulphoxide derivative in an inert anhydrous organic solvent, and then brominating the resulting silyl ester of the deacetoxycephalosporanic acid sulphoxide in situ.