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