3-Hydroxy-2-iodo-5-(trifluoromethoxy)pyridine-6-acetonitrile
3-Cyano-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-6-methanol
3-Cyano-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-5-methanol
3-Cyano-6-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-2-carboxylic acid