An efficient enantioselective synthesis of the potent anticancer agent (+)-duryne was achieved by the use of a one-pot organocatalyzed hydroxylation/Ohira-Bestmann and Grubbs cross-metathesis/selective cis-Wittig reaction. This new approach is envisioned to facilitate the synthesis of every representative member of the family. (C) 2012 Elsevier Ltd. All rights reserved.
Total Synthesis of (+)- and (−)-Duryne: A Potent Anticancer Agent from the Marine Sponge Cribrochalina Dura. Establishment of the Central Double Bond Geometry and the Absolute Configuration of the Chiral Centers
作者:Benjamin W. Gung、Ann O. Omollo
DOI:10.1021/jo702399j
日期:2008.2.1
Duryne is a C30 polyacetylenicalcohol with C2 symmetry. Despite its potent cytotoxicity, its central double bond geometry and the absoluteconfiguration of the chiral centers were not determined. We report the total syntheses of both enantiomers of the anticancer natural product (+)-duryne and the establishment of its stereochemistry by synthesizing both geometric isomers. The natural (+)-duryne is