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