3-Fluoro-4-hydroxy-2-(trifluoromethoxy)pyridine-5-sulfonamide
6-Fluoro-2-hydroxy-4-(trifluoromethoxy)pyridine-3-sulfonamide
4-Cyano-6-fluoro-2-(trifluoromethoxy)pyridine-3-acetonitrile
4-Cyano-2-fluoro-5-(trifluoromethoxy)pyridine-3-acetonitrile
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