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