Five new phenolic compounds from Dendrobium aphyllum

Fitoterapia. 2015 Jan:100:11-8. doi: 10.1016/j.fitote.2014.11.004. Epub 2014 Nov 11.

Abstract

One new phenanthrene, aphyllone A (1) and four new bibenzyl derivatives, aphyllone B (2) and aphyllals C-D (3-5), together with nine known compounds (6-14), were isolated from the stems of Dendrobium aphyllum (Roxb.) C. E. Fischer. The structures of these new compounds were elucidated by means of extensive spectroscopic analyses, and the absolute configuration of compound 1 was determined by single crystal X-ray diffraction and quantum calculations. Compounds 6, 8 and 14 inhibited NO production at the concentration of 25 μM in LPS-stimulated RAW264.7 cells with the inhibition (%) of 32.48, 35.68, and 38.50. Compound 2 possessed significant DPPH radical scavenging activity with scavenging percentage of 87.97% at the concentration of 100 μg/mL.

Keywords: Batatasin III (PubChem CID: 10466989); Bibenzyl derivative; Dendrobium aphyllum; Dihydroresveratrol (PubChem CID: 185914); Gigantol (PubChem CID: 10221179); Hircinol (PubChem CID: 442705); Moscatilin (PubChem CID: 176096); Moscatin (PubChem CID: 194774); NO production; Phenanthrene; Tristin (PubChem CID: 15736297).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Bibenzyls / chemistry
  • Bibenzyls / isolation & purification
  • Cell Line
  • Cell Line, Tumor
  • Dendrobium / chemistry*
  • Free Radical Scavengers / chemistry
  • Free Radical Scavengers / isolation & purification
  • Humans
  • Macrophages / drug effects
  • Mice
  • Molecular Structure
  • Nitric Oxide / biosynthesis
  • Phenanthrenes / chemistry*
  • Phenanthrenes / isolation & purification
  • Phenols / chemistry*
  • Phenols / isolation & purification
  • Plant Stems / chemistry

Substances

  • Bibenzyls
  • Free Radical Scavengers
  • Phenanthrenes
  • Phenols
  • Nitric Oxide