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