4-Bromo-6-(chloromethyl)-3-(difluoromethyl)pyridine-2-acetonitrile
4-Bromo-3-(chloromethyl)-2-(difluoromethyl)-5-nitropyridine
4-Bromo-2-(chloromethyl)-3-(difluoromethyl)pyridine-6-acetonitrile
5-Bromo-3-(chloromethyl)-2-(difluoromethyl)pyridine-4-acetonitrile