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