Ethyl 5-(aminomethyl)-2-bromo-4-(difluoromethyl)pyridine-3-carboxylate
Ethyl 5-(aminomethyl)-2-bromo-3-(difluoromethyl)pyridine-4-carboxylate
3-Bromo-5-(difluoromethyl)-2-iodopyridine-6-carbonyl chloride
5-Bromo-4-(difluoromethyl)-2-iodopyridine-3-carbonyl chloride