title: Three new xanthones from Garcinia xanthochymus.
abstract: To study xanthones from the barks of Garcinia xanthochymus, the constituents were isolated by normal-phase and reverse-phase silica gel column chromatography from the EtOAc extract. Their structures were elucidated by spectral analysis. Three new xanthones were purified and identified as 1,2,5-trihydroxy-6-methoxyxanthone (1), 1,4,6-trihydroxy-5-methoxyxanthone (2), 1,2,7-trihydroxy-4-(1,1-dimethylallyl) xanthone (3).
authors.affiliation: Laboratory for Natural Product Chemistry, College of Life Sciences, South Central University for Nationalities, Wuhan 430074, China.
authors.forename: Fang-fang
authors.initials: FF
authors.lastname: Zhong
authors.forename: Yu
authors.initials: Y
authors.lastname: Chen
authors.forename: Fa-jun
authors.initials: FJ
authors.lastname: Song
authors.forename: Guang-zhong
authors.initials: GZ
authors.lastname: Yang
mesh_terms: D029760:Garcinia / Q000737:chemistry*; D015394:Molecular Structure; D024301:Plant Bark / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry; D044004:Xanthones / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: C544006:1,2,5-trihydroxy-6-methoxyxanthone; C544008:1,2,7-trihydroxy-4-(1,1-dimethylallyl)xanthone; C544007:1,4,6-trihydroxy-5-methoxyxanthone; D044004:Xanthones