Xanthouroleuconaphin: a yellowish pigment from the aphid Uroleucon nigrotuberculatum and its total synthesis

Taichi Nishimura,Mitsuyo Horikawa, Kouji Yamada, Ayaka Sogabe,Takeshi Nishii,Hiroto Kaku,Makoto Inai,Masami Tanaka,Shigeru Takahashi,Tetsuto Tsunoda

Tetrahedron（2013）

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摘要

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 BF3·2AcOH complex.

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关键词

Structure determination,Aphid pigment,Xanthouroleuconaphin,Uroleucon nigrotuberculatum,Total synthesis,Phenolic coupling

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