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