2-(carbomethoxy)thiophene-3-sulfonyl chloride
4-hydroxy-3-methoxycarbonyl-2-methyl-2H-thieno[2,3-e]-1,2-thiazine,1,1-dioxide
4-Hydroxy-2-(4-methoxy-benzyl)-1,1-dioxo-1,2-dihydro-1λ6-thieno[2,3-e][1,2]thiazine-3-carboxylic acid pyridin-2-ylamide
methyl 4-hydroxy-2-<(4-methoxyphenyl)methyl>-2H-thieno<2,3-e>-1,2-thiazine-3-carboxylate 1,1-dioxide
methyl 3-<<<(methoxcarbonyl)methyl>amino>sulfonyl>-2-thiophenecarboxylate