title: Four new trace phenolic glycosides from Curculigo orchioides.
abstract: Four new trace phenolic glycosides named orcinosides D (1), E (2), F (3), and G (4) were isolated from the rhizomes of Curculigo orchioides Gaertn. Based on comprehensive spectroscopic analyses including IR, FAB-MS, HR-ESI-MS, 1D- and 2D NMR (HSQC, HMBC), their structures were elucidated as orcinol-1-O-beta-D-xylopyranoside (1), orcinol-1-O-beta-D-apiofuranosyl-(1 --> 2)-beta-D-glucopyranoside (2), orcinol-3-O-beta-D-apiofuranosyl-1-O-beta-D-glucopyranoside (3), and 1-O-beta-D-glucopyranosyl-4-ethoxyl-3-hydroxymethylphenol (4).
authors.affiliation: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China.
authors.forename: Ai-Xue
authors.initials: AX
authors.lastname: Zuo
authors.forename: Yong
authors.initials: Y
authors.lastname: Shen
authors.forename: Xue-Mei
authors.initials: XM
authors.lastname: Zhang
authors.forename: Zhi-Yong
authors.initials: ZY
authors.lastname: Jiang
authors.forename: Jun
authors.initials: J
authors.lastname: Zhou
authors.forename: Jun
authors.initials: J
authors.lastname: Lu
authors.forename: Ji-Jun
authors.initials: JJ
authors.lastname: Chen
mesh_terms: D031408:Curculigo / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010636:Phenols / Q000737:chemistry / Q000302:isolation & purification*; D027343:Rhizome / Q000737:chemistry; D013237:Stereoisomerism
chemical_list: D004365:Drugs, Chinese Herbal; D006027:Glycosides; D010636:Phenols