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Phenylpropanoids from Umbilicus pendulinus.

L Viornery1, C Saliba, J B Daskiewicz

  • 1Texinfine, Lyon, France.

Chemical & Pharmaceutical Bulletin
|November 22, 2000
PubMed
Summary
This summary is machine-generated.

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Researchers identified new compounds, E-venusol and Z-venusol, from Umbilicus pendulinus leaves. Nuclear Magnetic Resonance (NMR) experiments helped determine the structure and configuration of these phytochemicals.

Area of Science:

  • Phytochemistry
  • Natural Product Chemistry
  • Organic Chemistry

Background:

  • Umbilicus pendulinus is a plant species with potential medicinal properties.
  • Phytochemical studies aim to identify bioactive compounds in plants.
  • Understanding plant chemical constituents is crucial for drug discovery.

Purpose of the Study:

  • To conduct a phytochemical investigation of Umbilicus pendulinus leaves.
  • To isolate and identify chemical compounds present in the plant.
  • To elucidate the stereochemical configuration of newly identified compounds.

Main Methods:

  • Phytochemical analysis of Umbilicus pendulinus leaf extracts.
  • Isolation of compounds using chromatographic techniques.
  • Structure elucidation using Nuclear Magnetic Resonance (NMR) spectroscopy, including special NMR experiments.

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Main Results:

  • Isolation of 2-O-caffeoyl malate, isoquercitrin, and Z-venusol.
  • Identification of a new isomer, E-venusol.
  • Determination of the configuration of Z-venusol and E-venusol using NMR data.

Conclusions:

  • Umbilicus pendulinus leaves are a source of diverse phytochemicals.
  • The discovery of E-venusol expands the known chemical profile of the plant.
  • NMR spectroscopy is a powerful tool for determining the configuration of complex organic molecules.