[EN] PROCESS FOR PREPARATION OF 2-[3-CYANO-4-(2-METHYLPROPOXY)PHENYL]-4-METHYLTHIAZOLE-5-CARBOXYLIC ACID AND ITS PHARMACEUTICALLY ACCEPTABLE SALTS [FR] PROCÉDÉ POUR LA PRÉPARATION D'ACIDE 2-[3-CYANO-4-(2-MÉTHYLPROPOXY)PHÉNYL]-4-MÉTHYLTHIAZOLE-5-CARBOXYLIQUE ET SES SELS ACCEPTABLES SUR LE PLAN PHARMACEUTIQUE
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.
PROCESS TO PREPARE ETHYL 4-METHYL-2-(4-(2-METHYLPROPYLOXY)-3-CYANOPHENYL)-5-THIAZOLECARBOXYLATE
申请人:Kompella Amala
公开号:US20130172571A1
公开(公告)日:2013-07-04
Disclosed is a process for the preparation of Ethyl 4-methyl-2-(4-(2-methylpropyloxy)-3-cyanophenyl)-5-thiazolecarboxylate (I) the key intermediate for the preparation of [2-[3-cyano-4-(2-Methyl-propoxy)phenyl]-4-methyl-5-thiazole carboxylic acid (Febuxostat, I(A)) is approved under the trademark Uloric® by the US Food and Drug Administration for the treatment of hyperuricemia and gouty arthritis.
SUBSTANTIALLY PURE SALTS OF FEBUXOSTAT AND PROCESSES FOR PREPARATION THEREOF
申请人:Dwivedi Shriprakash Dhar
公开号:US20130190366A1
公开(公告)日:2013-07-25
Substantially pure salts of febuxostat of Formula (IA): wherein Y is Na
+
, K
+
, Li
+
, Mg
2+
, Ca
2+
, Zn
2+
, Ba
2+
, Sr
2+
, choline, epolamine and N
+
(R)
4
and processes for preparation thereof are disclosed.