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.
[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.
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.