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