title: [Isolation and structure determination of xanthone glycosides of Anemarrhena asphodeloides].
abstract: Xilingzhimu, the rhizomes of Anemarrhena asphodeloides Bunge (Liliaceae), has been prescribed as antipyretic, anti-inflammatory, diuretic and hypoglycemic agents in Chinese traditional medicine. In this paper, two xanthone glycosides I and II, were isolated from Xilingzhimu by conventional method. The structures of I and II were identified on the basis of chemical reactions and UV, IR, 1HNMR, 13CNMR and DEPT. Compound I was identified as mangiferin and II is a new compound, named neomangiferin. Its structure is 7-O-beta-D-glucopyranosyl-mangiferin.
authors.affiliation: Research Laboratory of Natural and Synthetic Drugs, College of Pharmacy, Second Military Medical University, Shanghai 200433.
authors.forename: Y F
authors.initials: YF
authors.lastname: Hong
authors.forename: G Y
authors.initials: GY
authors.lastname: Han
authors.forename: X M
authors.initials: XM
authors.lastname: Guo
mesh_terms: D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D019668:Liliaceae / Q000737:chemistry*; D015394:Molecular Structure; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D014966:Xanthenes / Q000737:chemistry / Q000302:isolation & purification; D044004:Xanthones
chemical_list: D005960:Glucosides; D014966:Xanthenes; D044004:Xanthones; C442164:neomangiferin; C013592:mangiferin