title: A new lignan glucoside from the stems of Callicarpa japonica Thunb. var. luxurians Rehd.
abstract: A new lignan glucoside (1) was isolated from the stems of Callicarpa japonica Thunb. var. luxurians Rehd. (Verbenaceae), along with six known lignan glucosides and three known triterpenoids. The chemical structure of 1 was characterized as (+)-lyoniresinol 3 alpha-O-(6''-3,5-dimethoxy-4-hydroxybenzoyl)-beta-D-glucopyranoside on the basis of spectroscopic data. In addition, the radical-scavenging effect of four lignans on the stable free radical 1,1-diphenyl-2-picrylhydrazyl was examined. Among the tested compounds, three compounds, including 1, showed almost the same scavenging activity as that of alpha-tocopherol.
authors.affiliation: School of Agriculture, Tokai University, 5435 Minamiaso, Aso, Kumamoto, 869-1404, Japan. mono@agri.u-tokai.ac.jp
authors.forename: Masateru
authors.initials: M
authors.lastname: Ono
authors.forename: Kenji
authors.initials: K
authors.lastname: Mishima
authors.forename: Toru
authors.initials: T
authors.lastname: Yamasaki
authors.forename: Chikako
authors.initials: C
authors.lastname: Masuoka
authors.forename: Masafumi
authors.initials: M
authors.lastname: Okawa
authors.forename: Junei
authors.initials: J
authors.lastname: Kinjo
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Ikeda
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Nohara
mesh_terms: D000975:Antioxidants / Q000737:chemistry / Q000302:isolation & purification; D001713:Biphenyl Compounds / Q000737:chemistry; D032408:Callicarpa / Q000737:chemistry*; D016166:Free Radical Scavengers / Q000737:chemistry / Q000302:isolation & purification; D005960:Glucosides / Q000737:chemistry* / Q000302:isolation & purification; D006834:Hydrazines / Q000737:chemistry; D017705:Lignans / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010851:Picrates; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification; D018547:Plant Stems / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry
chemical_list: D000975:Antioxidants; D001713:Biphenyl Compounds; D016166:Free Radical Scavengers; D005960:Glucosides; D006834:Hydrazines; D017705:Lignans; D010851:Picrates; D010936:Plant Extracts; D014315:Triterpenes; C004931:1,1-diphenyl-2-picrylhydrazyl
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