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
获得4-(N-烷基氨基)-5,6-二氢-4H-噻-(2,3-b)噻吩-2-磺酰胺-7,7-二氧化物(I)的过程,其中R1为H或C1-5烷基,R2为C1-5烷基,始于相应的4-(N-烷基氨基)-5,6-二氢-4H-噻-(2,3-b)噻吩-7,7-二氧化物,并包括保护烷基胺基,引入磺酰胺基团和消除保护基。公式(I)的一些化合物是碳酸酐酶的抑制剂,可用于治疗眼内压升高。