3-Fluoro-2-hydroxy-5-(trifluoromethoxy)pyridine-4-sulfonamide
6-Fluoro-2-hydroxy-3-(trifluoromethoxy)pyridine-4-sulfonamide
2-Fluoro-6-hydroxy-4-(trifluoromethoxy)pyridine-3-sulfonamide
2-Fluoro-6-iodo-4-(trifluoromethoxy)pyridine-3-methanol
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