5-(Chloromethyl)-2-cyano-3-(trifluoromethoxy)pyridine-4-acetonitrile
4-(Chloromethyl)-3-cyano-2-(trifluoromethoxy)pyridine-5-acetonitrile
2-(Chloromethyl)-3-cyano-6-(trifluoromethoxy)pyridine-4-carboxylic acid
2-(Chloromethyl)-3-cyano-4-(trifluoromethoxy)pyridine-6-carboxylic acid