title: Isolation of two new ionone glucosides from quince (Cydonia oblonga Mill.) leaves.
abstract: The 9-O-beta-D-glucopyranosides of (6R)-3-oxo-4-hydroxy-7,8-dihydro-alpha-ionol 1 and 3-oxo-5,6-epoxy-beta-ionol 2 were isolated from quince leaves. The glycosidic extract was obtained by XAD-2 adsorption and MeOH elution. After DCCC separation and flash chromatography, purification by high performance liquid chromatography was carried out. The novel quince leaf constituents were characterized as peracetates 1a and 2a.
authors: Institut für Pharmazie und Lebensmittelchemie, Universität Erlangen-Nürmberg, Erlangen, Germany.
authors: Andrea
authors: A
authors: Lutz-Röder
authors: Marc
authors: M
authors: Schneider
authors: Peter
authors: P
authors: Winterhalter
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D045792:Norisoprenoids; D019906:Nuclear Magnetic Resonance, Biomolecular; D018515:Plant Leaves / Q000737:chemistry; D027824:Rosaceae / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: C470076:3-oxo-4-hydroxy-7,8-dihydroionol 9-O-glucopyranoside; C470077:3-oxo-5,6-epoxy-beta-ionol 9-O-glucopyranoside; D005960:Glucosides; D045792:Norisoprenoids