The first total synthesis of (+/-)-lagopodin A and a formal total synthesis of enokipodins A and B is described. The requisite precursors containing two vicinal quaternary carbon atoms were assembled employing Claisen rearrangement and an RCM reaction as key steps starting from 2,5-dimethoxy-4-methylacetophenone. (c) 2006 Elsevier Ltd. All rights reserved.
A Regioselective Total Synthesis of the Fungal Sesquiterpene (±)-Lagopodin A
作者:A. Srikrishna、R. Babu、P. Ravikumar
DOI:10.1055/s-2007-967971
日期:——
A highly regiocontrolled totalsynthesis of fungal sesquiterpene lagopodin A, employing a combination of Claisen rearrangement-intramolecular diazoketone cyclopropanation and a highly regioselective cyclopropane ring cleavage, is described.