4-(Chloromethyl)-2-cyano-5-(trifluoromethoxy)pyridine-3-carboxylic acid
3-Cyano-4-(fluoromethyl)-2-methyl-6-(trifluoromethoxy)pyridine
3-(Bromomethyl)-2-fluoro-6-(trifluoromethoxy)pyridine-4-acetonitrile
5-(Chloromethyl)-3-cyano-2-(trifluoromethoxy)pyridine-4-carboxylic acid