First enantiospecific synthesis of marine sesquiterpene quinol akaol A
作者:Enrique Alvarez-Manzaneda、Rachid Chahboun、Esteban Alvarez、Antonio Fernández、Ramón Alvarez-Manzaneda、Ali Haidour、Jose Miguel Ramos、Ali Akhaouzan
DOI:10.1039/c1cc14608d
日期:——
The first enantiospecific synthesis of akaol A, a marine sesquiterpene quinol, has been achieved. Key steps of the synthetic sequence are the oxidative degradation of (-)-sclareol to a dinorlabdane ketoester, mediated by the ozone-lead(IV) acetate system, the diastereoselective alpha-methylation of a ketoaldehyde, followed by an intramolecular aldol condensation and the further Diels-Alder cycloaddition