3-Chloro-4-(chloromethyl)-5-(trifluoromethoxy)pyridine-2-acetic acid
3-(Bromomethyl)-2-cyano-4-(difluoromethyl)-5-(trifluoromethoxy)pyridine
3-Chloro-2-(chloromethyl)-6-(trifluoromethoxy)pyridine-5-acetic acid
6-Fluoro-3-hydroxy-4-(trifluoromethoxy)pyridine-2-acetic acid