PROCESS TO PREPARE ETHYL 4-METHYL-2-(4-(2-METHYLPROPYLOXY)-3-CYANOPHENYL)-5-THIAZOLECARBOXYLATE

摘要

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.