5-Bromo-4-(difluoromethyl)-3-(trifluoromethyl)pyridine-2-acetic acid
2-Chloro-6-cyano-5-(difluoromethyl)-3-(trifluoromethyl)pyridine
3-Bromo-4-(difluoromethyl)-2-(trifluoromethyl)pyridine-6-acetic acid
2-Chloro-6-cyano-3-(difluoromethyl)-4-(trifluoromethyl)pyridine