Two new compounds from Dendrobium candidum

Chem Pharm Bull (Tokyo). 2008 Oct;56(10):1477-9. doi: 10.1248/cpb.56.1477.

Abstract

Two new compounds were isolated from the stems of Dendrobium candidum: (R)-3,4-dihydroxy-5,4',alpha-trimethoxybibenzyl (1), named dendrocandin A; and 4-[2-[(2S,3S)-3-(4-hydroxy-3,5-dimethoxyphenyl)-2-hydroxymethyl-8-methoxy-2,3-dihydrobenzo[1,4]dioxin-6-yl]ethyl]-1-methoxyl benzene (2), dendrocandin B. Five previously known bibenzyls were also identified: 4,4'-dihydroxy-3,5-dimethoxybibenzyl (3), 3,4-dihydroxy-5,4'-dimethoxybibenzyl (4), 3-O-methylgigantol (5), dendrophenol (6), and gigantol (7).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Chromatography, High Pressure Liquid
  • Circular Dichroism
  • Dendrobium / chemistry*
  • Dioxanes / chemistry*
  • Dioxanes / isolation & purification
  • Magnetic Resonance Spectroscopy
  • Plant Stems / chemistry
  • Spectrometry, Mass, Electrospray Ionization
  • Spectrophotometry, Infrared
  • Spectrophotometry, Ultraviolet
  • Stilbenes / chemistry*
  • Stilbenes / isolation & purification

Substances

  • 3,4-dihydroxy-5,4',alpha-trimethoxybibenzyl
  • 4-(2-(3-(4-hydroxy-3,5-dimethoxyphenyl)-2-hydroxymethyl-8-methoxy-2,3-dihydrobenzo(1,4)dioxin-6-yl)ethyl)-1-methoxybenzene
  • Dioxanes
  • Stilbenes