作者:Alec Saitman、Steven D.E. Sullivan、Emmanuel A. Theodorakis
DOI:10.1016/j.tetlet.2013.01.085
日期:2013.3
An efficient strategy for the construction of C-13-oxidized cembrenolides is reported. Central to this strategy is the installation of the C-13 hydroxyl group prior to cembrane macrocyclization (via formation of the C-1-C-2 bond), allowing access to both C-13 alcohol epimers. The orientation of the C-13 alcohol was found to influence the cyclization mode of the cembranolide scaffold upon furan oxidation, leading to motifs reminiscent to bipinnatolide F, bielschowskysin, and verrillin. (c) 2013 Elsevier Ltd. All rights reserved.