Transformations of the 2,7-<i>Seco Aspidosperma</i> Alkaloid Leuconolam, Structure Revision of <i>epi</i>-Leuconolam, and Partial Syntheses of Leuconoxine and Leuconodines A and F
作者:Yun-Yee Low、Fong-Jiao Hong、Kuan-Hon Lim、Noel F. Thomas、Toh-Seok Kam
DOI:10.1021/np400922x
日期:2014.2.28
reaction resulted in cyclization to yield two epimers, the majorproduct corresponding to the optical antipode of a (+)-meloscine derivative. The structures and relative configuration of the products were confirmed by X-ray diffraction analysis. Reaction of leuconolam and epi-leuconolam with various acids, molecular bromine, and hydrogen gave results that indicated that the structure of the alkaloid, previously