4-(Bromomethyl)-5-chloro-2-(trifluoromethoxy)pyridine-3-acetonitrile
4-(Bromomethyl)-5-chloro-3-(trifluoromethoxy)pyridine-2-acetonitrile
4-(Bromomethyl)-3-chloro-2-(trifluoromethoxy)pyridine-6-acetonitrile
4-(Bromomethyl)-6-chloro-3-(trifluoromethoxy)pyridine-2-acetonitrile