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