Methyl 3-cyano-4-hydroxy-6-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 3-cyano-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-4-acetate
2-Cyano-4-fluoro-3-(fluoromethyl)-5-(trifluoromethoxy)pyridine
Ethyl 6-cyano-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-acetate