Xanthouroleuconaphin: a yellowish pigment from the aphid Uroleucon nigrotuberculatum and its total synthesis
作者:Taichi Nishimura、Mitsuyo Horikawa、Kouji Yamada、Ayaka Sogabe、Takeshi Nishii、Hiroto Kaku、Makoto Inai、Masami Tanaka、Shigeru Takahashi、Tetsuto Tsunoda
DOI:10.1016/j.tet.2012.12.070
日期:2013.2
A novel yellowish pigment, xanthouroleuconaphin, was isolated from the aphid Uroleucon nigrotuberculatum. Its structure was established by detailed analyses of 1D and 2D NMR spectra and EI-HRMS. Furthermore, the total synthesis of (+/-)-xanthouroleuconaphin was accomplished via oxidative phenolic coupling of 6-hydroxymusizin, which was prepared by the Fries rearrangement using BF3 center dot 2AcOH complex. (C) 2013 Elsevier Ltd. All rights reserved.