Ethyl 3-bromo-2-(chloromethyl)-4-(difluoromethyl)pyridine-5-carboxylate
Ethyl 2-bromo-6-(chloromethyl)-5-(difluoromethyl)pyridine-3-carboxylate
Ethyl 2-bromo-6-(chloromethyl)-4-(difluoromethyl)pyridine-3-carboxylate
5-Bromo-3-(difluoromethyl)-2-methylpyridine-4-acetonitrile