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Five new Ocotillone-type saponins from Gynostemma pentaphyllum
1Department of Phytochemistry, China Pharmaceutical University, Nanjing 210009, People's Republic of China.
Journal of Natural Products
|July 24, 2004
Abstract:
Five new ocotillone-type saponins, gynosides A-E (1-5), along with 10 known dammarane-type saponins, were isolated from the aerial parts of Gynostemma pentaphyllum. The structures of these new compounds were determined by NMR analysis and acid hydrolysis. The structure and stereochemistry of gynoside A (1) were confirmed by X-ray crystallography.