title: Two new chemical constituents from the stem bark of Garcinia mangostana.
abstract: A detailed chemical study on the ethyl acetate and methanol extracts of the stem bark of Garcinia mangostana resulted in the successful isolation of one new prenylated xanthone, mangaxanthone B (1), one new benzophenone, mangaphenone (2), and two known xanthones, mangostanin (3) and mangostenol (4). The structures of these compounds were elucidated through analysis of their spectroscopic data obtained using 1D and 2D NMR and MS techniques.
authors.affiliation: Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
authors.forename: Irene
authors.initials: I
authors.lastname: See
authors.affiliation: Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia. gwen@upm.edu.my.
authors.forename: Gwendoline Cheng Lian
authors.initials: GC
authors.lastname: Ee
authors.affiliation: Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
authors.forename: Soek Sin
authors.initials: SS
authors.lastname: Teh
authors.affiliation: Department of Veterinary Pre-Clinical Science, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
authors.forename: Arifah Abdul
authors.initials: AA
authors.lastname: Kadir
authors.affiliation: Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
authors.forename: Shaari
authors.initials: S
authors.lastname: Daud
mesh_terms: D001577:Benzophenones / Q000737:chemistry; D028084:Clusiaceae / Q000737:chemistry; D029762:Garcinia mangostana / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D015394:Molecular Structure; D024301:Plant Bark / Q000737:chemistry*; D018547:Plant Stems / Q000737:chemistry*; D014966:Xanthenes / Q000737:chemistry; D044004:Xanthones / Q000737:chemistry
chemical_list: D001577:Benzophenones; D014966:Xanthenes; D044004:Xanthones; C461720:mangostenol; C047723:benzophenone; C009689:xanthone