6-Hydroxy-2-iodo-3-nitro-4-(trifluoromethoxy)pyridine
4-Cyano-3-(fluoromethyl)-2-(trifluoromethoxy)pyridine-6-carboxylic acid
3-Fluoro-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-acetonitrile
5-Fluoro-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-3-acetonitrile