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