Author/Authors :
Taichi Nishimura، نويسنده , , Mitsuyo Horikawa، نويسنده , , Kouji Yamada، نويسنده , , Ayaka Sogabe، نويسنده , , Takeshi Nishii، نويسنده , , Hiroto Kaku، نويسنده , , Makoto Inai، نويسنده , , Masami Tanaka، نويسنده , , Shigeru Takahashi، نويسنده , , Tetsuto Tsunoda، نويسنده ,
Abstract :
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.
Keywords :
Structure determination , Aphid pigment , Uroleucon nigrotuberculatum , Xanthouroleuconaphin , Total synthesis , phenolic coupling
