3-Chloro-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-4-acetic acid
6-Cyano-3-(difluoromethyl)-4-fluoro-2-(trifluoromethoxy)pyridine
6-Chloro-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-acetic acid
2-Cyano-3-(difluoromethyl)-5-fluoro-6-(trifluoromethoxy)pyridine