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Triterpenoid saponins from Aster bellidiastrum
T Schöpke1, C al-Tawaha, V Wray
1Humboldt-Universität zu Berlin, Mathematische-Naturwissenschaftliche Fakultät I, Institut für Pharmazie, Germany.
Phytochemistry
|May 1, 1997
Summary
Seven triterpenoid saponins were isolated from Aster bellidiastrum, with two novel compounds identified. Their structures, elucidated by NMR and mass spectrometry, show similarities to related plant species.
Area of Science:
- Phytochemistry
- Natural Product Chemistry
- Organic Chemistry
Background:
- Aster bellidiastrum is a plant species with potential for novel compound discovery.
- Triterpenoid saponins are a class of natural products with diverse biological activities.
- Previous research has identified saponins in related genera like Bellis.
Purpose of the Study:
- To isolate and characterize triterpenoid saponins from Aster bellidiastrum.
- To identify novel saponin structures within this plant species.
- To compare the isolated saponins with those from related genera.
Main Methods:
- Extraction and isolation of compounds from aerial and underground parts of Aster bellidiastrum.
- Structure elucidation using Nuclear Magnetic Resonance (NMR) and Mass Spectrometry (MS).
- Comparative analysis of spectral data with known saponins.
Main Results:
- Seven triterpenoid saponins were successfully isolated.
- Five saponins were found in both aerial and underground plant parts.
- Two novel saponin structures were identified and characterized.
- The elucidated structures showed significant similarity to saponins from the Bellis genus.
Conclusions:
- Aster bellidiastrum is a source of diverse triterpenoid saponins, including novel compounds.
- The structural similarity of saponins suggests a potential chemotaxonomic link between Aster and Bellis genera.
- Further investigation into the biological activities of these saponins is warranted.