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