5-(Chloromethyl)-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine-2-acetic acid
2-Bromo-3-(difluoromethyl)pyridine-4-carbonyl chloride
2-(Difluoromethyl)-6-iodo-4-nitropyridine
3-(Chloromethyl)-5-(difluoromethyl)-2-(trifluoromethoxy)pyridine-4-acetic acid