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