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