5-Hydroxy-2-methyl-3-(trifluoromethoxy)pyridine-4-sulfonamide
4-Hydroxy-6-methyl-3-(trifluoromethoxy)pyridine-2-sulfonamide
5-Hydroxy-3-methyl-4-(trifluoromethoxy)pyridine-2-sulfonamide
5-Hydroxy-4-methyl-3-(trifluoromethoxy)pyridine-2-sulfonamide
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