PROCESSES FOR PREPARING A DIAZABICYCLOOCTANE COMPOUND

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专利权人:

MEIJI SEIKA PHARMA CO.; LTD.

发明人:

Takao ABE,Takeshi FURUUCHI,Yoshiaki SAKAMAKI,Seiichi INAMURA,Akihiro MORINAKA

申请号：

US15973861

公开号：

US20180258089A1

申请日:

2018.05.08

申请国别(地区):

US

年份:

2018

代理人:

摘要：

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.

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