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