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Rhamnetin 3-p-coumaroylrhamninoside from Rhamnus petiolaris

M Ozipek1, I Caliş, M Ertan

  • 1Department of Pharmacognosy, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey.

Phytochemistry
|September 1, 1994
PubMed
Summary
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Researchers identified a novel acylated flavonol glycoside from Rhamnus petiolaris berries. This discovery adds to the known phytochemicals found in this plant species.

Area of Science:

  • Phytochemistry
  • Natural Product Chemistry
  • Plant Sciences

Background:

  • Rhamnus petiolaris is a plant species known for its potential medicinal properties.
  • Flavonol glycosides are a class of plant compounds with diverse biological activities.

Purpose of the Study:

  • To isolate and characterize novel compounds from the berries of Rhamnus petiolaris.
  • To expand the understanding of the phytochemical profile of Rhamnus petiolaris.

Main Methods:

  • Phytochemical analysis of Rhamnus petiolaris berry extract.
  • Isolation and structural elucidation of compounds using spectroscopic techniques.

Main Results:

  • A new acylated flavonol glycoside, rhamnetin 3-O-[3"-O-(p-coumaroyl)-alpha-L-rhamnopyranosyl(1-->3)- alpha-L-rhamnopyranosyl(1-->6)]-beta-D-galactopyranoside, was identified.

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  • Five known flavonol glycosides were also isolated: rhamnetin, rhamnazin, quercetin and kaempferol 3-rhamninosides, and quercetin 3-rhamnoside.

    • Conclusions:

    • The phytochemical investigation of Rhamnus petiolaris berries yielded a new acylated flavonol glycoside.
    • The study contributes to the knowledge of secondary metabolites in Rhamnus species.