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