Iridoid glycosides and grayanane diterpenoids from the roots of Craibiodendron henryi

J Nat Prod. 2005 Nov;68(11):1646-50. doi: 10.1021/np050261s.

Abstract

Four new iridoid glycosides, 10-O-trans-p-coumaroylscandoside (1), 10-O-cis-p-coumaroylscandoside (2), 10-O-trans-p-coumaroyldesacetyl asperulosidic acid (3), and 10-O-cis-p-coumaroyldesacetyl asperulosidic acid (4), and two new grayanane diterpenoids, 14beta-O-(2S,3S-nilyl)-2alpha,3beta,5beta,6beta,16alpha-pentahydroxygrayanane (5) and 14beta-O-(2S,3S-nilyl)-2alpha,3beta,5beta,6beta,16alpha-pentahydroxygrayan-10(20)-ene (6), have been isolated from Craibiodendron henryi. The structures of these compounds were determined by chemical and spectroscopic methods including 1H-1H COSY, HMQC, HMBC, and NOESY experiments. Antioxidant activities and vasodilator effects of these compounds were assessed.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antioxidants / chemistry
  • Antioxidants / isolation & purification*
  • Antioxidants / pharmacology
  • Diterpenes / chemistry
  • Diterpenes / isolation & purification*
  • Diterpenes / pharmacology
  • Ericaceae / chemistry*
  • Iridoids / chemistry
  • Iridoids / isolation & purification*
  • Iridoids / pharmacology
  • Molecular Structure
  • Plant Roots / chemistry
  • Plants, Medicinal / chemistry*
  • Rats
  • Rats, Wistar
  • Vasodilator Agents / chemistry
  • Vasodilator Agents / isolation & purification*
  • Vasodilator Agents / pharmacology

Substances

  • Antioxidants
  • Diterpenes
  • Iridoids
  • Vasodilator Agents