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