title: A new abietic acid-type diterpene glucoside from the needles of Pinus densiflora.
abstract: From the ethyl acetate fraction of the methanol extract of the needles of Pinus densiflora (Pinaceae), a new diterpenoid glucoside [9alpha,13alpha-epoxy-8beta,14beta-dihydroxy-abietic acid-18-O-beta-D: -glucopyranoside] (1), two flavonoid glucosides [kaempferol 3-O-beta-D: -glucoside (2) and 6-C-methyl kaempferol 3-O-beta-D: -glucoside (3)], and two monoterpenoid glucosides [bornyl 6-O-alpha-Larabinofuranosyl (1-->6)-beta-D: -glucopyranoside (4) and bornyl 6-O-beta-D: -apiofuranosyl (1-->6)-beta-D: -glucopyranoside (5)] were isolated and characterized on the basis of spectral analysis. Of all the compounds, 2 and 3 showed peroxynitrite scavenging activity.
authors.affiliation: Division of Food Science and Biotechnology, Pukyong National University, Busan, 608-737, Korea.
authors.forename: Mee Jung
authors.initials: MJ
authors.lastname: Jung
authors.forename: Hyun Ah
authors.initials: HA
authors.lastname: Jung
authors.forename: Sam Sik
authors.initials: SS
authors.lastname: Kang
authors.forename: Geum-Sook
authors.initials: GS
authors.lastname: Hwang
authors.forename: Jae Sue
authors.initials: JS
authors.lastname: Choi
mesh_terms: D045784:Abietanes / Q000737:chemistry* / Q000302:isolation & purification; D002241:Carbohydrates / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification; D016166:Free Radical Scavengers / Q000737:chemistry* / Q000302:isolation & purification; D005609:Free Radicals / Q000737:chemistry; D005960:Glucosides / Q000737:chemistry* / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification; D007202:Indicators and Reagents; D009682:Magnetic Resonance Spectroscopy; D030421:Peroxynitrous Acid / Q000737:chemistry; D028223:Pinus / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry; D018515:Plant Leaves / Q000737:chemistry; D016339:Spectrometry, Mass, Fast Atom Bombardment
chemical_list: C549417:9,13-epoxy-8,14-dihydroxyabietic acid-18-O-glucopyranoside; D045784:Abietanes; D002241:Carbohydrates; D005419:Flavonoids; D016166:Free Radical Scavengers; D005609:Free Radicals; D005960:Glucosides; D006027:Glycosides; D007202:Indicators and Reagents; D010936:Plant Extracts; D030421:Peroxynitrous Acid; C023710:abietic acid