AN IMPROVED PROCESS FOR THE PREPARATION OF ETORICOXIB

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专利权人:

发明人:

申请号：

EP13731500.8

公开号：

EP2831045A2

申请日:

2013.03.20

申请国别(地区):

EP

年份:

2015

代理人:

摘要：

The present invention relates to an improved process for the preparation of Etoricoxib by reacting ketosulfone of formula-ll with vinamidinium salt of formula-Ill in the presence of an acid, followed by conversion to an acid addition salt and finally desaltifying to get Etoricoxib of formula-l.

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/