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