2-(Bromomethyl)-6-chloro-3-(difluoromethyl)pyridine-4-carboxylic acid
Methyl 3-chloro-4-(difluoromethyl)-5-fluoropyridine-2-carboxylate
Ethyl 4-chloro-6-(difluoromethyl)-2-iodopyridine-3-carboxylate
Methyl 3-chloro-6-(difluoromethyl)-2-iodopyridine-4-carboxylate