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