New Dammarane-type Glycosides from Gynostemma pentaphyllum
โ Scribed by Piacente, Sonia; Pizza, Cosimo; De Tommasi, Nunziatina; De Simone, Francesco
- Book ID
- 127206570
- Publisher
- American Chemical Society
- Year
- 1995
- Tongue
- English
- Weight
- 550 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0163-3864
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## Abstract Nine new dammarane saponins, **1**โ**9**, were isolated from the MeOH extract of the aerial part of __Gynostemma pentaphyllum__, an edible plant of the Cucurbitaceae family, that grows wildly in China. Their structures were elucidated by 1Dโ and 2DโNMR analysis, as well as by chemical d
Six new triterpenoid glycosides, gynosaponins I -VI (1 -6, resp.), together with three known compounds, ginseng Rb 1 (7), gypenoside XLIX (8), and gylongiposide I (9), were isolated from the aerial parts of Gynostemma pentaphyllum. Based on ESI-MS, IR, 1D-and 2D-NMR data (HMQC, HMBC, COSY, and TOCSY