4-Cyano-3-(fluoromethyl)-2-(trifluoromethoxy)pyridine-6-acetonitrile
4-Cyano-2-(fluoromethyl)-6-(trifluoromethoxy)pyridine-3-acetonitrile
4-Cyano-2-(fluoromethyl)-3-(trifluoromethoxy)pyridine-6-acetonitrile
3-Cyano-5-(fluoromethyl)-6-(trifluoromethoxy)pyridine-2-acetonitrile