Related Experiment Video
Updated: Jun 2, 2026
12:34
The Efficacy and Underlying Pathway Mechanisms of ShiDuGao Treatment for Anus Eczema Based on GEO Datasets and Network Pharmacology
Published on: January 12, 2024
Dammarane-type saponins from Gynostemma pentaphyllum
1Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 151-742, South Korea.
Phytochemistry
|May 14, 2011
Summary
Seven new dammarane glycosides were identified from Gynostemma pentaphyllum. Researchers elucidated the structures of these compounds using advanced spectroscopic and chemical methods.
Area of Science:
- Phytochemistry
- Natural Products Chemistry
- Organic Chemistry
Background:
- Gynostemma pentaphyllum is a plant known for its diverse chemical constituents.
- Dammarane glycosides are a class of compounds with potential biological activities.
Purpose of the Study:
- To isolate and characterize novel dammarane glycosides from Gynostemma pentaphyllum.
- To elucidate the structures of these compounds using spectroscopic and chemical techniques.
Main Methods:
- Methanol extraction of aerial parts of Gynostemma pentaphyllum.
- Isolation of compounds using chromatographic techniques.
- Structure elucidation via 1D and 2D Nuclear Magnetic Resonance (NMR) spectroscopy and chemical degradation.
Main Results:
- Seven new dammarane glycosides, designated gypenosides GC1 to GC7, were isolated.
- Ten known compounds, including gypenosides V, XIV, XLII-XLVI, gynosaponins TN-1, -2, and gymnemaside VI, were also identified.
- The structures of all isolated compounds were fully elucidated.
Conclusions:
- The study successfully identified new dammarane glycosides from Gynostemma pentaphyllum.
- The structural elucidation provides valuable data for understanding the chemical diversity of this plant species.
