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