[EN] PROCESS FOR PREPARING (4S, 6S)-4-(ETHYLAMINO)-5,6-DIHYDRO-6-METHYL-4H-THIENO-[2,3-B]THIOPYRAN-2-SULFONAMIDE-7,7-DIOXIDE AND ITS INTERMEDIATES<br/>[FR] PROCÉDÉ DE PRÉPARATION DE (4S,6S)-4-(ÉTHYLAMINO)-5,6-DIHYDRO-6-MÉTHYL- 4H-THIÉNO-[2,3-B]THIOPYRAN-2-SULFAMIDE-7,7-DIOXYDE ET DE SES INTERMÉDIAIRES.
申请人:MICRO LABS LTD
公开号:WO2011101704A1
公开(公告)日:2011-08-25
Disclosed herein is an improved process for the preparation of (4S,6S)-4-(ethylamino)-5,6-dihydro-6-methyl-4H-thieno-[2,3-b]thiopyran-2-sulfonamide-7,7- dioxide (Dorzolamide) and its intermediates.