We have achieved total synthesis of cleomiscosin C (aquillochin) through regioselective cycloaddition of o-quinone and protected sinapyl alcohol as a key step. During preparation of o-quinone from phenol by IBX oxidation, silyl substituents adjacent to the phenolic hydroxyl group afforded effective inhibition of an undesired oxidative elimination. (c) 2008 Elsevier Ltd. All rights reserved.
Total Synthesis of (±)-Aiphanol, a Novel Cyclooxygenase-inhibitory Stilbenolignan
作者:Atsuhito Kuboki、Toru Yamamoto、Susumu Ohira
DOI:10.1246/cl.2003.420
日期:2003.5
(±)-Aiphanol has been stereoselectively synthesized through IBX-mediated o-quinone formation, and through [4+2] cycloaddition of the o-quinone and cinnamyl alcohol unit.