2-(Chloromethyl)-6-cyano-3-(trifluoromethoxy)pyridine-5-acetonitrile
3-(Bromomethyl)-6-cyano-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine
4-(Bromomethyl)-3-cyano-2-(trifluoromethoxy)-6-(trifluoromethyl)pyridine
4-(Bromomethyl)-2-cyano-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine