Acetylated flavonol diglucosides from Meconopsis quintuplinervia

Phytochemistry. 2006 Mar;67(5):511-5. doi: 10.1016/j.phytochem.2005.12.002. Epub 2006 Jan 18.

Abstract

Four acetylated flavonol diglucosides, quercetin 3-O-[2'''-O-acetyl-beta-d-glucopyranosyl-(1-->6)-beta-d-glucopyranoside], quercetin 3-O-[2''',6'''-O-diacetyl-beta-d-glucopyranosyl-(1-->6)-beta-d-glucopyranoside], isorhamnetin 3-O-[2'''-O-acetyl-beta-d-glucopyranosyl-(1-->6)-beta-d-glucopyranoside], and quercetin 3-O-[2'''-O-acetyl-alpha-l-arabinopyranosyl-(1-->6)-beta-d-glucopyranoside], together with five known flavonol glycosides quercetin 3-O-beta-d-glucopyranoside, kaempferol 3-O-beta-d-glucopyranoside, quercetin 3-O-[beta-d-galactopyranosyl-(1-->6)-glucopyranoside], isorhamnetin 3-O-[beta-d-galactopyranosyl-(1-->6)-beta-d-glucopyranoside], and kaempferol 3-O-[beta-d-glucopyranosyl-(1-->2)-beta-d-glucopyranoside] have been isolated from Meconopsis quintuplinervia. Their structures were determined using chemical and spectroscopic methods including HRFABMS, (1)H-(1)H COSY, HSQC and HMBC experiments.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acetylation
  • Flavonols / chemistry
  • Flavonols / isolation & purification*
  • Glucosides / chemistry
  • Glucosides / isolation & purification*
  • Magnetic Resonance Spectroscopy
  • Molecular Structure
  • Papaveraceae / chemistry*
  • Plants, Medicinal / chemistry*
  • Spectrum Analysis

Substances

  • Flavonols
  • Glucosides