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