Processes for preparing a diazabicyclooctane compound

A process for preparing a diazabicyclooctane compound represented by the following formula (I):wherein A represents RcO-; B represents NH or NC1-6 alkyl; C represents a benzyl group; Rc represents a C1-6 alkyl group; A is substituted with one substituent Fn1, wherein Fn1 represents an azetidine grou...

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Bibliographische Detailangaben
Hauptverfasser:	Sakamaki, Yoshiaki, Furuuchi, Takeshi, Abe, Takao
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 HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC CHEMISTRY PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
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Beschreibung
Zusammenfassung:	A process for preparing a diazabicyclooctane compound represented by the following formula (I):wherein A represents RcO-; B represents NH or NC1-6 alkyl; C represents a benzyl group; Rc represents a C1-6 alkyl group; A is substituted with one substituent Fn1, wherein Fn1 represents an azetidine group; the process including: (a) silylating the compound represented by the following formula (IV-c):wherein in the formula (IV-c), OBn represents benzyloxy, and (b) carrying out an intramolecular urea formation reaction.