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