title: Novel dammarane-type glycosides from Gynostemma pentaphyllum.
abstract: 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.
authors.affiliation: National Center for Drug Screening, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 189 Guo-Shou-Jing Road, Shanghai 201203, China.
authors.forename: Feng
authors.initials: F
authors.lastname: Yin
authors.forename: Lihong
authors.initials: L
authors.lastname: Hu
authors.forename: Ruixiang
authors.initials: R
authors.lastname: Pan
mesh_terms: D002241:Carbohydrates / Q000737:chemistry; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D029774:Gynostemma / Q000737:chemistry*; D006571:Heterocyclic Compounds / Q000737:chemistry / Q000302:isolation & purification; D006868:Hydrolysis; D009682:Magnetic Resonance Spectroscopy; D000432:Methanol; D010936:Plant Extracts / Q000737:chemistry; D011208:Powders; D012997:Solvents; D021241:Spectrometry, Mass, Electrospray Ionization; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification; D000097669:Dammaranes
chemical_list: D002241:Carbohydrates; D005419:Flavonoids; D006027:Glycosides; D006571:Heterocyclic Compounds; D000432:Methanol; D010936:Plant Extracts; D011208:Powders; D012997:Solvents; D014315:Triterpenes; D000097669:Dammaranes