Triterpene Saponins from Gynostemma cardiospermum
journal contributionposted on 27.10.2006 by Feng Yin, Yinan Zhang, Zhengyi Yang, Qiuqun Cheng, Lihong Hu
Any type of content formally published in an academic journal, usually following a peer-review process.
Six new dammarane glycosides (1−6) and four known compounds, rutin, kaempferol, quercetin, and linalool 3-O-β-d-glucopyranoside, were isolated from an ethanol extract of the aerial parts of Gynostemma cardiospermum. The structures of 1−6 were elucidated by 1D and 2D NMR spectroscopic interpretation as well as by chemical degradation. Triterpene aglycons containing carbonyl groups at both C-21 and C-28, as found in compounds 1−5, are being reported in the family Cucurbitaceae for the first time.