4-(Chloromethyl)-2-(difluoromethyl)-6-(trifluoromethoxy)pyridine-3-acetic acid
3-Bromo-5-(difluoromethyl)-2-(trifluoromethyl)pyridine
3-(Chloromethyl)-4-(difluoromethyl)-6-(trifluoromethoxy)pyridine-2-acetic acid
3-Bromo-4-(difluoromethyl)-2-(fluoromethyl)pyridine