6-Bromo-2-(bromomethyl)-4-(difluoromethyl)pyridine-3-carboxaldehyde
2-Bromo-6-(bromomethyl)-3-(difluoromethyl)pyridine-5-carboxaldehyde
4-Bromo-2-(chloromethyl)-3-(difluoromethyl)pyridine-5-acetonitrile
2-Bromo-5-(bromomethyl)-6-(difluoromethyl)pyridine-3-carboxaldehyde