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