5-Cyano-3-hydroxy-4-(trifluoromethoxy)pyridine-2-sulfonamide
3-Cyano-6-methyl-2-(trifluoromethoxy)pyridine-5-methanol
3-Cyano-5-hydroxy-2-(trifluoromethoxy)pyridine-4-sulfonamide
5-Cyano-2-methyl-3-(trifluoromethoxy)pyridine-6-methanol
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