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A new flavonoside from Leonurus heterophyllus.
Yue Cong1, Jin-Hui Wang, Xian Li
1School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China.
Journal of Asian Natural Products Research
|December 29, 2004
Summary
Researchers identified a novel flavonoside in Leonurus heterophyllus. This new compound, a quercetin derivative, was structurally elucidated using advanced spectral analysis and chemical methods.
Area of Science:
- Phytochemistry
- Natural Product Chemistry
- Organic Chemistry
Background:
- Leonurus heterophyllus is a plant species known for its diverse chemical constituents.
- Flavonoids are a significant class of plant secondary metabolites with various biological activities.
- Understanding the flavone composition of L. heterophyllus can reveal novel compounds.
Purpose of the Study:
- To isolate and characterize new flavonosides from Leonurus heterophyllus.
- To determine the precise chemical structure of the newly discovered flavonoside.
Main Methods:
- Chemical investigation involving isolation techniques.
- Physico-chemical evidence gathering.
- Advanced spectral analysis (e.g., NMR, Mass Spectrometry) for structural elucidation.
Main Results:
- A new flavonoside was successfully isolated from Leonurus heterophyllus.
- The structure of the isolated compound was determined to be quercetin-3-O-[3-(4-hydroxy-3,5-dimethoxybenzyl)-alpha-L-rhamnopyranosyl]-(1-->6)-beta-D-galactopyranoside (1).
Conclusions:
- The study successfully identified and characterized a novel flavonoside from L. heterophyllus.
- The established structure provides valuable data for future research on this compound and related natural products.