Stereoselective Construction of the Tricyclic Core of Neoliacinic Acid
作者:J. Stephen Clark、Carl A. Baxter、Alexander G. Dossetter、Stéphane Poigny、José L. Castro、William G. Whittingham
DOI:10.1021/jo702111u
日期:2008.2.1
[GRAPHICS]The tricyclic core of the plant-derived sesquiterpene natural product neoliacinic acid was synthesized using a novel synthetic strategy. The pivotal synthetic transformations are construction of the key bicyclic ether-bridged intermediate by sequential deployment of metal carbenoid C-H insertion and ylide-forming reactions and installation of the lactone portion of neoliacinic acid by an acid-catalyzed intramolecular ring-opening reaction of an epoxide with a carboxylic acid.