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