A new triterpenoid saponin from Gynostemma pentaphyllum
β Scribed by Shi, Lin; Meng, Xian-Jun; Cao, Jia-Qing; Zhao, Yu-Qing
- Book ID
- 120269609
- Publisher
- Taylor and Francis Group
- Year
- 2012
- Tongue
- English
- Weight
- 130 KB
- Volume
- 26
- Category
- Article
- ISSN
- 1478-6419
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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
## Abstract Nine new dammarane saponins, **1**β**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 1Dβ and 2DβNMR analysis, as well as by chemical d
## Abstract Three new dammaraneβtype triterpene saponins, **1**β**3**, together with three known compounds, **4**β**6**, were isolated from the aerial parts of __Gynostemma pentaphyllum__ (Thunb.) Makino. By means of chemical and spectroscopic methods, their structures were established as (20__S__)
## Abstract The six new triterpene saponins **1**β**6** with a 21,23βlactone skeleton were isolated from the MeOH extract of the aerial parts of __Gynostemma pentaphyllum.__ Their structures were elucidated by 1Dβ and 2DβNMRβspectra interpretation as well as by chemical degradation.