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