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