PROCESS FOR THE PREPARATION OF PHOSPHORUS DERIVATIVES OF SECONDARY AMMONIUM SALTS OF PENAM AND CEPHEM COMPOUNDS

PROCESS FOR THE PREPARATION OF PHOSPHORUS DERIVATIVES OF SECONDARY AMMONIUM SALTS OF PENAM AND CEPHEM COMPOUNDS

Particularly valuable phosphitoamides for use in the reaction in which the 7-amino group of 7-aminocephalosporanic acid (7-aca) esters is acylated with an acyl halide. In the presence of bases, such as esters, they are easily isomerized whereby the valuable 3-cephem compounds are converted to 2-ceph...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PETERSEN, HENNING BORGE, NIELSEN, JORGEN ILUM, GUDDAL, ERLING, BORREVANG, POUL, FAARUP, PETER
Format: Patent
Sprache:eng
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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Beschreibung
Zusammenfassung:Particularly valuable phosphitoamides for use in the reaction in which the 7-amino group of 7-aminocephalosporanic acid (7-aca) esters is acylated with an acyl halide. In the presence of bases, such as esters, they are easily isomerized whereby the valuable 3-cephem compounds are converted to 2-cephem compounds (Machine-translation by Google Translate, not legally binding)