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.
获得 4-(N-烷基氨基)-5,6-二氢-4H-噻吩-(2,3-b)-噻喃-2-磺酰胺-7,7-二氧 化物(I)的工艺,其中 R1 是 H 或 C1-5 烷基,R2 是 C1-5 烷基、从相应的 4-(N-烷基氨基)-5,6-二氢-4H-噻吩-(2,3-b)-噻喃-7,7-二氧 化物开始,包括保护烷基胺基团、引入磺酰胺基团和消除保护基团。一些式(I)化合物是碳酸酐酶的抑制剂,可用于治疗眼压升高。