Ethyl 4-fluoro-2-hydroxy-5-(trifluoromethoxy)pyridine-3-acetate
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