Ethyl 5-(aminomethyl)-3-bromo-4-(difluoromethyl)pyridine-2-carboxylate
Ethyl 3-bromo-2-(bromomethyl)-4-(difluoromethyl)pyridine-5-carboxylate
Ethyl 2-bromo-6-(bromomethyl)-5-(difluoromethyl)pyridine-3-carboxylate
Ethyl 2-bromo-6-(bromomethyl)-4-(difluoromethyl)pyridine-3-carboxylate