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