4-Bromo-3-(chloromethyl)-5-(difluoromethyl)-2-nitropyridine
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