Ethyl 2-bromo-4-(bromomethyl)-3-(difluoromethyl)pyridine-6-carboxylate
3-Bromo-2-(chloromethyl)-4-(difluoromethyl)pyridine-5-carboxaldehyde
2-Bromo-6-(chloromethyl)-5-(difluoromethyl)pyridine-3-carboxaldehyde
2-Bromo-6-(chloromethyl)-4-(difluoromethyl)pyridine-3-carboxaldehyde