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