title: Two new xanthone diglycosides from Swertia longifolia Boiss.
abstract: From aerial parts of Swertia longifolia Boiss., which grows in the north of Iran, five xanthones, two of which in diglycosidic form, were isolated. The structures were confirmed by means of their spectral data as isobellidifolin, bellidin, gentisein, 1,5-dihydroxy-3-methoxy-6-O-primeverosyl xanthone, and 8-hydroxy-3,5-dimethoxy-1-O-primeverosyl xanthone, the latter two of which were new derivatives in the plant kingdom.
authors.affiliation: Faculty of Pharmacy, Department of Pharmacognosy, Tehran University of Medical Sciences, Tehran, Iran. hajimehd@sina.tums.ac.ir
authors.forename: Homa
authors.initials: H
authors.lastname: Hajimehdipoor
authors.forename: Marie-Geneviève
authors.initials: MG
authors.lastname: Dijoux-Franca
authors.forename: Anne-Marie
authors.initials: AM
authors.lastname: Mariotte
authors.forename: Yaghoub
authors.initials: Y
authors.lastname: Amanzadeh
authors.forename: Seyyed-Esmaeal
authors.initials: SE
authors.lastname: Sadat-Ebrahimi
authors.forename: Mahmoud
authors.initials: M
authors.lastname: Ghazi-Khansari
mesh_terms: D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D019906:Nuclear Magnetic Resonance, Biomolecular; D035261:Plant Components, Aerial / Q000737:chemistry; D010936:Plant Extracts / Q000737:chemistry*; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared; D029967:Swertia / Q000737:chemistry*; D044004:Xanthones / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D006027:Glycosides; D010936:Plant Extracts; D044004:Xanthones