NOVEL POLYMORPHS OF FEBUXOSTAT AND PROCESSES FOR PREPARING THE SAME

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专利权人:

发明人:

KUMAR RAJIV,BELWAL CHANDRAKANT,BAJAJ Lukesh,NAIM SYED SHAWKAT

申请号：

IN2898/MUM/2010

公开号：

IN2010MU02898A

申请日:

2010.10.18

申请国别(地区):

IN

年份:

2012

代理人:

摘要：

NOVEL POLYMORPHS OF 2-[3-CYANO-4-(2-METHYLPROPOXY)PHENYL]-4-METHYL-5-THIAZOLE CARBOXYLIC ACID AND PROCESSES FOR PREPARING THE SAME The present invention discloses novel polymorphs of febuxostat. The novel crystalline polymorphs of febuxostat, hereinafter referred as crystal III and cystal IV are disclosed. Also disclosed are the processes for preparing novel crystalline forms III & IV of febuxostat. Apart from this, the invention also discloses processes for preparing known crystalline form A of febuxostat.

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