Stereocontrolled Semisyntheses of Elliptone and 12aβ-Hydroxyelliptone
作者:David A. Russell、Winston J. S. Fong、David G. Twigg、Hannah F. Sore、David R. Spring
DOI:10.1021/acs.jnatprod.7b00527
日期:2017.10.27
dihydroxylation-oxidative cleavage, chemoselective Baeyer–Villiger oxidation, and acid-catalyzed elimination sequence. Elaboration of elliptone to 12aβ-hydroxyelliptone was achieved via a diastereoselective chromium-mediated Étard-like hydroxylation. The semisynthesis of elliptone constitutes an improvement over previous methods in terms of safety, scalability, and yield, while the first synthesis of 12aβ-hydroxyelliptone