[EN] PROCESS FOR PREPARING DORZOLAMIDE HYDROCHLORIDE AND ITS INTERMEDIATE [FR] PROCÉDÉ POUR LA PRÉPARATION DE CHLORHYDRATE DE DORZOLAMIDE ET SES INTERMÉDIAIRES
[EN] PROCESS FOR PREPARING DORZOLAMIDE HYDROCHLORIDE AND ITS INTERMEDIATE [FR] PROCÉDÉ POUR LA PRÉPARATION DE CHLORHYDRATE DE DORZOLAMIDE ET SES INTERMÉDIAIRES
Process for obtaining 4-(N-alkylamino)-5,6-dihydro-4H-thien-(2,3-b)-thiopyran-2-sulfonamide-7,7-dioxides and intermediates
申请人:RAGACTIVES, S.L.
公开号:US20030220509A1
公开(公告)日:2003-11-27
The process for obtaining 4-(N-alkylamino)-5,6-dihydro-4H-thien-(2,3-b)-thiopyran-2-sulfonamide-7,7-dioxides (I) wherein R
1
is H or C
1-5
alkyl, and R
2
is C
1-5
alkyl, starts from the corresponding 4-(N-alkylamino)-5,6-dihydro-4H-thien-(2,3-b)-thiopyran-7,7-dioxides, and comprises protecting the alkylamine group, introducing a sulfonamide group and eliminating protecting group. Some compounds of formula (I) are inhibitors of the carbonic anhydrase and can be used in the treatment of elevated intraocular pressure.
1
METHOD FOR OBTAINING 4-(N-ALKYLAMINE)-5, 6-DIHYDRO-4H-THIENO-(2,3-B)-THIOPYRAN-2-SULFAMIDE-7, 7-DIOXIDES AND INTERMEDIATE PRODUCTS
申请人:Ragactives, S.L.
公开号:EP1329453A1
公开(公告)日:2003-07-23
The process for obtaining 4-(N-alkylamino)-5,6-dihydro-4H-thien-(2,3-b)-thiopyran-2-sulfonamide-7,7-dioxides (I) wherein R1 is H or C1-5 alkyl, and R2 is C1-5 alkyl, starts from the corresponding 4-(N-alkylamino)-5,6-dihydro-4H-thien-(2,3-b)-thiopyran-7,7-dioxides, and comprises protecting the alkylamine group, introducing a sulfonamide group and eliminating protecting group. Some compounds of formula (I) are inhibitors of the carbonic anhydrase and can be used in the treatment of elevated intraocular pressure.