title: Acylated farnesyl diglycosides from Guioa crenulata.
abstract: Chemical investigation of the methanol extract of the leaves of Caledonian Guioa crenulata led to the isolation and characterisation of four farnesyl diglycosides, crenulatosides A, B, C and D, along with three known flavonol glycosides and one known trimeric proanthocyanidin possessing a doubly linked structure. The structures of these compounds were determined on the basis of spectroscopic studies and chemical evidence. The ethanol and ethyl acetate extracts of the leaves exhibited no cytotoxic activity and no inhibition of acetylcholinesterase.
authors.affiliation: Laboratoire de Pharmacognosie, 51, Rue Cognacq-Jay, FRE CNRS 2715, IFR 53 Biomolécules, Bât. 18, BP 1039, 51687 Reims Cedex 2, France.
authors.forename: Abdulmagid Alabdul
authors.initials: AA
authors.lastname: Magid
authors.forename: Laurence
authors.initials: L
authors.lastname: Voutquenne-Nazabadioko
authors.forename: Marc
authors.initials: M
authors.lastname: Litaudon
authors.forename: Catherine
authors.initials: C
authors.lastname: Lavaud
mesh_terms: D000215:Acylation; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry / Q000379:methods; D015394:Molecular Structure; D018515:Plant Leaves / Q000737:chemistry; D044945:Proanthocyanidins / Q000737:chemistry / Q000302:isolation & purification; D029631:Sapindaceae / Q000737:chemistry*; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D005419:Flavonoids; D006027:Glycosides; D044945:Proanthocyanidins; D012717:Sesquiterpenes; C013221:proanthocyanidin