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