Enantioselective formal synthesis of (−)-ovalicin using quinic acid as a chiral template
作者:Achille Barco、Simonetta Benetti、Carmela De Risi、Paolo Marchetti、Gian P. Pollini、Vinicio Zanirato
DOI:10.1016/s0957-4166(98)00284-5
日期:1998.8
the synthesis of (−)-ovalicin was synthesized using (−)-quinic acid as the chiral source, through a series of stereocontrolled and efficient chemical reactions, thus establishing a new, formal synthesis of the natural target. The featuring spirocyclic epoxide function has been installed by internal Williamson ether synthesis using the functionalities originally present at C-1 of (−)-quinic acid after
通过一系列立体控制和有效的化学反应,以(-)-奎尼酸为手性来源,合成了合成(-)-卵磷脂的关键中间体18,从而建立了天然靶标的新的正式合成方法。经过适当的调整,在C-2处引入必要的官能度之后,通过内部Williamson醚合成,使用最初存在于(-)-奎宁酸C-1处的官能度,安装了具有特征性的螺环环氧官能团。