title: A new stilbene glycoside from Elephantorrhiza goetzei.
abstract: A new stilbene glycoside, 5-methoxy-(E)-resveratrol 3-O-rutinoside (1) was isolated from the root bark of Elephantorrhiza goetzei, along with known compounds, namely gallic acid, (E)-resveratrol, (+/-)-catechin, (+/-)-gallocatechin and oleanene triterpenoids. The combined ethyl acetate-methanol extract exhibited high lethality against brine shrimp larvae (LC(50) 10.8 ppm) compared to the isolates, some of which were not active.
authors.affiliation: Department of Chemistry, University of Botswana, Private Bag 00704, Gaborone, Botswana.
authors.forename: C C
authors.initials: CC
authors.lastname: Wanjala
authors.forename: R R
authors.initials: RR
authors.lastname: Majinda
mesh_terms: D000818:Animals; D001156:Artemia / Q000187:drug effects; D007887:Fabaceae; D005419:Flavonoids / Q000737:chemistry / Q000494:pharmacology; D005707:Gallic Acid / Q000737:chemistry / Q000494:pharmacology; D006027:Glycosides / Q000737:chemistry / Q000494:pharmacology*; D006801:Humans; D007814:Larva; D007928:Lethal Dose 50; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology*; D018517:Plant Roots; D013267:Stilbenes / Q000737:chemistry / Q000494:pharmacology*; D014315:Triterpenes / Q000737:chemistry / Q000494:pharmacology
chemical_list: C438743:5-methoxy-resveratrol 3-O-rutinoside; D005419:Flavonoids; D006027:Glycosides; D010936:Plant Extracts; D013267:Stilbenes; D014315:Triterpenes; C404987:flavan-3-ol; D005707:Gallic Acid