Department of Chemistry, Center for Chemical Methodology and Library Development (CMLD-BU), Boston University , 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States.
J Am Chem Soc. 2012 Aug 8;134(31):13108-13. doi: 10.1021/ja305342f. Epub 2012 Jul 25.
We have previously reported development of biomimetic, asymmetric [3 + 2] photocycloadditions between 3-hydroxyflavones and cinnamate dipolarophiles to access (-)-rocaglamide and related natural products. Herein, we describe enantioselective syntheses of aglain cycloadducts leading to the first total syntheses and absolute configuration assignments of the aglain natural products (+)-ponapensin and (+)-elliptifoline.
我们之前曾报道过不对称[3+2]光环加成反应的仿生学发展,该反应发生在 3-羟基黄酮和肉桂酸二极性体之间,以获得(-)-罗卡酰胺和相关天然产物。在此,我们描述了导致首次全合成和(+)-ponapensin 和(+)-elliptifoline 这两种 aglain 天然产物绝对构型确定的 aglain 环加成产物的对映选择性合成。