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化学学报
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化学学报 ›› 1965, Vol. 31 ›› Issue (4): 333-335. 上一篇    下一篇

研究简报

石斛碱与新石斛碱的构型

黃文魁   

  1. 兰州大学化学系
  • 投稿日期:1964-05-06 发布日期:2013-06-03

CONFIGURATIONS OF DENDROBINE AND NOBILINE

HWANG(HUANG) WEN-KUEI   

  1. Department of Chemistry, Lanchow University, Lanchow
  • Received:1964-05-06 Published:2013-06-03

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我国四川、云南等地出产的兰科植物金石斛(Dendrobium nobile)中含植物碱.Suzuki等[1]及陈克恢等[2]自其中分离出石斛碱(dendrobine,C16H25O2N);最近Yamamura等[3]又分离出一种新植物碱——nobiline(建议译为新石斛碱),C17H27O3N.Inubushi等[4]与Yamamura等[3]分别独立提出石斛碱(Ⅰ)的部分相对构型式;后者尚测定了新石斛碱(Ⅱ)的部分相对构型式.它们的结构与天然有机物苦毒宁(picrotoxinin)[5](Ⅲ)很相似.

The NMR spectrum of oxodendrobinediol monoacetate (V),a degradation product of dendrobine (I),showed a quartet, corresponding to the C6 proton (4.87τ,J1=3.5 c.p, s.,J2=9.0 c.p.s.),among which the larger value of 9.0 c.p.s.should arise Erom the interaction between vicinal protons at C5 and C6, implying a dihedral angle of about 180° between them.