AN IMPROVED PROCESS FOR THE PREPARATION OF ETORICOXIB FORM-V

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专利权人:

发明人:

HITKARI ANURAG,BHATT PRASHANT

申请号：

IN18/MUM/2012

公开号：

IN2012MU00018A

申请日:

2012.01.03

申请国别(地区):

IN

年份:

2013

代理人:

摘要：

The present invention discloses an improved process for the preparation of crystalline Form-V of etoricoxib of Formula (I), The process comprises: (e) providing etoricoxib in known crystalline forms (f) treating etoricoxib of step (a) with one or more of suitable ester solvents (g) removing the solvent to obtain etoricoxib and (h) drying obtained etoricoxib at ambient temperature to obtain crystalline Form-V of etoricoxib.

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中国工程科技知识中心

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