title: Flavone C-glycosides from Lychnis senno and their antioxidative activity.
abstract: A new flavone C-glycoside, 5-O-acetyl-2"-alpha-rhamnopyranosylisovitexin (1), was isolated from the aerial parts of Lychnis senno Siebold et Zucc. (Family Caryophyllaceae), along with 2"-alpha-rhamnopyranosylisovitexin (2), 2"-a-rhamnopyranosylisoorientin (3) and isoorientin 3'-mehyl ether (4). All these compounds were isolated for the first time from L. senno and their antioxidative activity was analyzed by the 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) radical-scavenging method. Compound 3 showed moderate antioxidative activity.
authors.affiliation: School of Pharmacy, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan.
authors.forename: Hari Prasad
authors.initials: HP
authors.lastname: Devkota
authors.affiliation: School of Pharmacy, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan.
authors.forename: Kumiko
authors.initials: K
authors.lastname: Fukusako
authors.affiliation: Crop Functionality and Utilization Research Team, National Agricultural Research Center for Kyushu Okinawa Region, 6651-2 Yokoichi, Miyakonojo, Miyazaki 885-0091, Japan.
authors.forename: Koji
authors.initials: K
authors.lastname: Ishiguro
authors.affiliation: School of Pharmacy, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan.
authors.forename: Shoji
authors.initials: S
authors.lastname: Yahara
mesh_terms: D047309:Flavones / Q000737:chemistry / Q000302:isolation & purification*; D016166:Free Radical Scavengers / Q000302:isolation & purification*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D031244:Lychnis / Q000737:chemistry*; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry
chemical_list: C586035:5-O-acetyl-2''-alpha-rhamnopyranosylisovitexin; D047309:Flavones; D016166:Free Radical Scavengers; D006027:Glycosides