2-(Perfluorophenyl)-6-(trifluoromethyl)pyridine-4-acetonitrile
2-(Perfluorophenyl)-6-(trifluoromethyl)pyridine-3-acetonitrile
2-(Perfluorophenyl)-5-(trifluoromethyl)pyridine-4-acetonitrile
2-(Perfluorophenyl)-5-(trifluoromethyl)pyridine-3-acetonitrile