title: Diterpene glycosides from the ethanol extract of Diplopterygium rufopilosum.
abstract: A phytochemical investigation on the 70% EtOH extract from the dry fronds of Diplopterygium rufopilosum afforded two new labdane-type diterpene glycosides, (3β,13S)-3-O-β-d-glucopyranosyl-13-O-α-l-rhamnopyranosyl-labda-8(17),14-diene (1) and (3β,13S)-3-O-α-l-rhamnopyranosyl-13-O-[6-O-acetyl-β-d-glucopyranosyl-(1 → 4)-2-O-acetyl-α-l-rhamnopyranosyl]-labda-8(17),14-diene (2). Their structures were determined on the basis of chemical method and spectroscopic analyses, including 1D and 2D NMR (COSY, HMQC, HMBC, and NOESY) and HR-ESI-MS analyses.
authors.affiliation: a College of Biological Resources and Environment Science, Qujing Normal University , Qujing 655011 , China.
authors.forename: Jiang
authors.initials: J
authors.lastname: Hu
authors.forename: Yan
authors.initials: Y
authors.lastname: Song
authors.forename: Hui
authors.initials: H
authors.lastname: Li
authors.forename: Xia
authors.initials: X
authors.lastname: Mao
authors.forename: Xiao-Dong
authors.initials: XD
authors.lastname: Shi
mesh_terms: D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D004578:Electron Spin Resonance Spectroscopy; D000431:Ethanol / Q000737:chemistry; D029624:Ferns / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure
chemical_list: C000598450:(3beta,13S)-3-O-alpha-L-rhamnopyranosyl-13-O-(6-O-acetyl-beta-D-glucopyranosyl-(1-4)-2-O-acetyl-alpha-L-rhamnopyranosyl)-labda-8(17),14-diene; C000598449:(3beta,13S)-3-O-beta-D-glucopyranosyl-13-O-alpha-L-rhamnopyranosyl-labda-8(17),14-diene; D004224:Diterpenes; D006027:Glycosides; D000431:Ethanol
keywords: Diplopterygium rufopilosum; Gleicheniaceae; diterpene glycosides; labdane