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