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