5-Fluoro-3-(difluoromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine
3-Fluoro-6-hydroxy-4-(trifluoromethoxy)pyridine-2-acetonitrile
3-Fluoro-6-hydroxy-2-(trifluoromethoxy)pyridine-4-sulfonyl chloride
5-Fluoro-4-hydroxy-2-(trifluoromethoxy)pyridine-3-sulfonyl chloride