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