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