2-Fluoro-4-hydroxy-3-(trifluoromethoxy)pyridine-5-acetic acid
2-Chloro-5-(chloromethyl)-4-(trifluoromethoxy)pyridine-3-acetic acid
3-(Bromomethyl)-5-cyano-4-(trifluoromethoxy)pyridine-2-acetonitrile
5-(Bromomethyl)-4-cyano-2-(trifluoromethoxy)pyridine-3-acetonitrile