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