Ethyl 2-bromo-3-chloro-5-(difluoromethyl)pyridine-6-carboxylate
Methyl 5-bromo-2-chloro-4-(difluoromethyl)pyridine-3-carboxylate
Ethyl 2-bromo-3-chloro-4-(difluoromethyl)pyridine-5-carboxylate
5-Bromo-3-(bromomethyl)-2-cyano-4-(difluoromethyl)pyridine