Ethyl 5-bromo-2-(difluoromethyl)-3-iodopyridine-6-carboxylate
2-(Aminomethyl)-6-bromo-3-(difluoromethyl)pyridine-4-carboxaldehyde
Ethyl 4-bromo-5-(difluoromethyl)-2-iodopyridine-3-carboxylate
6-(Aminomethyl)-3-bromo-2-(difluoromethyl)pyridine-4-carboxaldehyde