Methyl 4-cyano-2-methyl-6-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 6-cyano-4-(fluoromethyl)-2-(trifluoromethoxy)pyridine-3-acetate
Methyl 4-cyano-2-methyl-3-(trifluoromethoxy)pyridine-6-carboxylate
3-Cyano-5-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-2-acetonitrile