Ethyl 3-(bromomethyl)-2-fluoro-5-(trifluoromethoxy)pyridine-4-carboxylate
5-Cyano-3-(fluoromethyl)-2-(trifluoromethoxy)pyridine-4-acetic acid
3-(Chloromethyl)-6-fluoro-2-(trifluoromethoxy)pyridine-5-acetonitrile
5-(Chloromethyl)-2-fluoro-3-(trifluoromethoxy)pyridine-6-acetonitrile