Ethyl 2-(bromomethyl)-6-cyano-5-(trifluoromethoxy)pyridine-3-acetate
4-Fluoro-2-iodo-6-(trifluoromethoxy)pyridine-3-acetonitrile
3-Chloro-5-(fluoromethyl)-4-(trifluoromethoxy)pyridine-2-methanol
6-(Chloromethyl)-2-cyano-4-(trifluoromethoxy)pyridine-3-acetic acid