PROCESS AND INTERMEDIATES FOR THE PREPARATION OF SUBSTITUTED 2-ARYLTHIAZOLE CARBOXYLIC ACIDS
申请人:Mizhiritskii Michael
公开号:US20140228417A1
公开(公告)日:2014-08-14
The present invention relates to processes and intermediates for the preparation of derivatives of 2-arylthiazole such as Febuxostat and its analogs. Febuxostat which is an inhibitor of xanthine oxidase, is used for the treatment of chronic hyperuricaemia in conditions in which urate deposition has occurred, such as gouty arthritis.
[EN] AN IMPROVED PROCESS FOR PREPARATION OF FEBUXOSTAT AND ITS POLYMORPHIC CRYSTALLINE FORM C THEREOF<br/>[FR] PROCÉDÉ DE PRÉPARATION AMÉLIORÉ DU FÉBUXOSTAT ET DE SA FORME CRISTALLINE POLYMORPHE C
申请人:SANDOZ AG
公开号:WO2012131590A1
公开(公告)日:2012-10-04
The present invention relates to process of preparation of 2-(3-cyano-4- isobutyloxyphenyl)-4-methyl-5-thiazole carboxylic acid (Febuxostat). The present invention in particular relates to an efficient and easily to operate scalable process of manufacturing of 2-(3-cyano-4-isobutyloxyphenyl)-4-methyl-5-thiazole carboxylic acid (Febuxostat) of Formula I and its crystalline polymorphic Form C.
[EN] NOVEL PROCESS FOR THE PREPARATION OF FEBUXOSTAT<br/>[FR] NOUVEAU PROCÉDÉ POUR LA PRÉPARATION DE FEBUXOSTAT
申请人:INDOCO REMEDIES LTD
公开号:WO2012073259A1
公开(公告)日:2012-06-07
Disclosed herein is a novel process for the preparation of 2-[3-cyano-4-(2- methylpropoxy)phenyl]-4-methylthiazole-5-carboxylic acid and novel intermediates thereof.
[EN] STABLE CRYSTAL FORM OF FEBUXOSTAT AND PROCESS FOR THE PREPARATION THEREOF<br/>[FR] FORME CRISTALLINE STABLE DE FEBUXOSTAT ET PROCÉDÉ DE PRÉPARATION CORRESPONDANT
申请人:NATCO PHARMA LTD
公开号:WO2013088449A1
公开(公告)日:2013-06-20
The invention relates to novel stable polymorphic form FC-1 of Febuxostat [2-[3-cyano- 4-(2-Methyl-propoxy)pheriyl]-4-methyl-5-thiazole carboxylic acid]. The invention also provides process for the preparation of novel stable polymorphic form FC-1 with >99.8% HPLC purity.