5-Chloro-2-(difluoromethyl)-3-iodopyridine-6-carboxaldehyde
Methyl 3-chloro-6-(difluoromethyl)-2-iodopyridine-5-carboxylate
Methyl 2-chloro-6-(difluoromethyl)-3-iodopyridine-5-carboxylate
Methyl 5-bromo-3-(chloromethyl)-2-(difluoromethyl)pyridine-4-carboxylate