title: A new labdane diterpenoid glycoside from Nervilia fordii.
abstract: To study the chemical constituents of Nervilia fordii (Hance) Schltr., various chromatographic methods were used, including D101 macroporous resin, silica gel, ODS and preparative HPLC chromatographic techniques. A new labdane diterpenoid glycoside named as nervilifordoside A was isolated from 60% EtOH extract of Nerviliafordii. The structure of compound 1 was elucidated as 12, 17-epoxy-3-hydroxy-17-methoxy-labdan-13-en-16, 15-olide 3-O-alpha-rhamnopyranosyl-(1 --> 2)-O-beta-glucopyranoside on the basis of HR-MS, 1D and 2D NMR spectroscopic data as well as chemical methods.
authors.forename: Gui-Kun
authors.initials: GK
authors.lastname: Huang
authors.forename: Li
authors.initials: L
authors.lastname: Qiu
authors.forename: Yang
authors.initials: Y
authors.lastname: Jiao
authors.forename: Ji-Zhao
authors.initials: JZ
authors.lastname: Xie
authors.forename: Lu-Hui
authors.initials: LH
authors.lastname: Zou
mesh_terms: D002851:Chromatography, High Pressure Liquid; D015394:Molecular Structure; D029595:Orchidaceae / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*