Synthesis of certain 5-substituted thieno[2,3-<i>b</i>]thiophene-2-sulfonamides and thieno[2,3-<i>b</i>]thiophene-2-sulfonamide 6,6-dioxides
作者:Hwang-Hsing Chen、Jesse A. May、Vincent M. Lynch
DOI:10.1002/jhet.5570360138
日期:1999.1
A series of the title compounds were prepared for evaluation as inhibitors of carbonic anhydrase II. Oxidation of 5-substituted thieno[2,3-b]thiophene-2-sulfonamides provided the first examples of thiophene[2,3-b]thiophene-2-sulfonarnide 6,6-dioxides. These cyclic vinyl sulfones readily underwent addi tion to give predominately that 4,5-cis addition product.
制备了一系列标题化合物以评估其作为碳酸酐酶II的抑制剂。氧化5-取代的噻吩并[2,3- b ]噻吩-2-磺酰胺噻吩提供[2,3的第一实施例b ]噻吩-2- sulfonarnide -6,6-二氧化物。这些环状乙烯基砜易于加成,主要得到4,5-顺式加成产物。