title: New dammarane-type glycosides from the roots of Gynostemma pentaphyllum.
abstract: Twelve new dammarane-type glycosides ( 1- 12) were isolated from the ethanol extract from the roots of a wild-type of Gynostemma pentaphyllum. The structures of the compounds were elucidated by 1D and 2D NMR spectroscopic analysis as well as by chemical degradation. The compounds contained six structurally diverse aglycons similar to those of the reported ginseng saponins with differences in the oligosaccharide moieties.
authors.affiliation: School of Pharmacy, East China University of Science and Technology, Shanghai, PR China.
authors.forename: Lei
authors.initials: L
authors.lastname: Ma
authors.forename: Wen-Juan
authors.initials: WJ
authors.lastname: Xiang
authors.forename: Pham Van
authors.initials: PV
authors.lastname: Khang
authors.forename: Yang
authors.initials: Y
authors.lastname: Liang
authors.forename: Yaping
authors.initials: Y
authors.lastname: Xiao
authors.forename: Li-Hong
authors.initials: LH
authors.lastname: Hu
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D029774:Gynostemma / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D009844:Oligosaccharides / Q000737:chemistry; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry; D012503:Saponins / Q000737:chemistry; D013237:Stereoisomerism; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification; D000097669:Dammaranes
chemical_list: D004365:Drugs, Chinese Herbal; D006027:Glycosides; D009844:Oligosaccharides; D012503:Saponins; D014315:Triterpenes; D000097669:Dammaranes