2-(Bromomethyl)-4-iodo-3-(trifluoromethoxy)pyridine-5-carboxaldehyde
4-(Chloromethyl)-2-iodo-3-(trifluoromethoxy)pyridine-6-acetonitrile
3-(Chloromethyl)-5-iodo-6-(trifluoromethoxy)pyridine-2-acetonitrile
3-(Chloromethyl)-5-iodo-2-(trifluoromethoxy)pyridine-6-acetonitrile