5-Chloro-3-(fluoromethyl)-4-(trifluoromethoxy)pyridine-2-carboxylic acid
2-(Difluoromethyl)-4-fluoro-3-(trifluoromethoxy)pyridine-5-acetic acid
4-Cyano-2,3-dichloro-6-(difluoromethyl)pyridine
2-Chloro-6-cyano-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine