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