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Novel Dammarane-Type Glycosides from Gynostemma pentaphyllum

2004; Pharmaceutical Society of Japan; Volume: 52; Issue: 12 Linguagem: Inglês

10.1248/cpb.52.1440

1347-5223

Feng Yin, Lihong Hu, Ruixiang Pan,

Phytochemistry and Biological Activities

Three new dammarane glycosides (1—3), together with five known compounds, gypenoside LXIX (4), gylongiposide I (5), gypenoside XLVIII (6), allantion (7) and vitexin (8) were isolated from the MeOH extract of the aerial parts of Gynostemma pentaphyllum. Compounds 5, 7, and 8 were isolated from this plant for the first time. Their structures were elucidated by 1D and 2D NMR spectra interpretation as well as by chemical degradation.