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