2-Chloro-4-cyano-6-(difluoromethyl)pyridine-3-carbonyl chloride
Ethyl 5-bromo-2-(chloromethyl)-4-(difluoromethyl)pyridine-3-carboxylate
Ethyl 4-chloro-3-cyano-2-(difluoromethyl)pyridine-6-acetate
Ethyl 4-bromo-3-(chloromethyl)-5-(difluoromethyl)pyridine-2-carboxylate