Ethyl 4-(chloromethyl)-3-cyano-6-(trifluoromethoxy)pyridine-2-carboxylate
2-(Chloromethyl)-3-cyano-5-(trifluoromethoxy)pyridine-4-carboxylic acid
Ethyl 4-(chloromethyl)-3-cyano-2-(trifluoromethoxy)pyridine-6-carboxylate
Methyl 6-(chloromethyl)-2-cyano-4-(trifluoromethoxy)pyridine-3-acetate