title: Stilbene derivatives from Gnetum gnemon Linn.
abstract: Four stilbene derivatives, gnemonols K and L (resveratrol trimers), M (isorhapontigenin dimer), and gnemonoside K (glucoside of resveratrol trimer) together with eleven known stilbenoids and a lignan were isolated from the acetone, methanol and 70% methanol soluble parts of the root of Gnetum gnemon (Gnetaceae). The structures of the isolates were determined by spectral analysis. The antioxidant activity of the stilbenoids on lipid peroxide inhibition and super oxide scavenging activity were also investigated.
authors.affiliation: Gifu Pharmaceutical University, 5-6-1, Mitahora-higashi, Gifu 502-8585, Japan.
authors.forename: Ibrahim
authors.initials: I
authors.lastname: Iliya
authors.forename: Zulfiqar
authors.initials: Z
authors.lastname: Ali
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Tanaka
authors.forename: Munekazu
authors.initials: M
authors.lastname: Iinuma
authors.forename: Miyuki
authors.initials: M
authors.lastname: Furusawa
authors.forename: Ken-ichi
authors.initials: K
authors.lastname: Nakaya
authors.forename: Jin
authors.initials: J
authors.lastname: Murata
authors.forename: Dedy
authors.initials: D
authors.lastname: Darnaedi
authors.forename: Nobuyasu
authors.initials: N
authors.lastname: Matsuura
authors.forename: Makoto
authors.initials: M
authors.lastname: Ubukata
mesh_terms: D000975:Antioxidants / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D016166:Free Radical Scavengers / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D035684:Gnetum / Q000737:chemistry*; D007214:Indonesia; D008054:Lipid Peroxides / Q000037:antagonists & inhibitors; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D018517:Plant Roots / Q000737:chemistry; D013267:Stilbenes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D013481:Superoxides / Q000737:chemistry
chemical_list: D000975:Antioxidants; D016166:Free Radical Scavengers; D008054:Lipid Peroxides; D013267:Stilbenes; D013481:Superoxides