title: Novel xanthones with superoxide scavenging activity from Garcinia subelliptica.
abstract: Two new xanthones, garciniaxanthone D (1) containing a dihydrobenzofuran ring and 1,4,5-trihydroxyxanthone (2), have been isolated from Garcinia subelliptica as superoxide anion scavengers. Their structures have been determined mainly by spectroscopic methods and some chemical reactions.
authors.affiliation: Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Minami
authors.forename: E
authors.initials: E
authors.lastname: Takahashi
authors.forename: Y
authors.initials: Y
authors.lastname: Fukuyama
authors.forename: M
authors.initials: M
authors.lastname: Kodama
authors.forename: T
authors.initials: T
authors.lastname: Yoshizawa
authors.forename: K
authors.initials: K
authors.lastname: Nakagawa
mesh_terms: D000975:Antioxidants / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D016166:Free Radical Scavengers / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D009682:Magnetic Resonance Spectroscopy; D010936:Plant Extracts / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013329:Structure-Activity Relationship; D013481:Superoxides / Q000378:metabolism*; D014966:Xanthenes / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D044004:Xanthones
chemical_list: D000975:Antioxidants; D016166:Free Radical Scavengers; D010936:Plant Extracts; D014966:Xanthenes; D044004:Xanthones; D013481:Superoxides; C009689:xanthone