Methyl 4-(chloromethyl)-3-cyano-2-(trifluoromethoxy)pyridine-5-acetate
2-Cyano-3-(fluoromethyl)-5-(trifluoromethoxy)pyridine-6-acetic acid
Methyl 4-(chloromethyl)-6-cyano-3-(trifluoromethoxy)pyridine-2-acetate
Ethyl 3-cyano-6-(fluoromethyl)-4-(trifluoromethoxy)pyridine-2-carboxylate