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