2-Cyano-5-(fluoromethyl)-4-nitro-3-(trifluoromethoxy)pyridine
4-Fluoro-3-(fluoromethyl)-6-(trifluoromethoxy)pyridine-2-acetonitrile
5-(Chloromethyl)-2-cyano-4-nitro-3-(trifluoromethoxy)pyridine
3-Fluoro-5-(fluoromethyl)-6-(trifluoromethoxy)pyridine-2-acetonitrile