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