Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.11889/3996
Full metadata record
DC FieldValueLanguage
dc.contributor.authorRayyan, Saleh
dc.contributor.authorFossen, Torgils
dc.contributor.authorNateland, Harvard Solheim
dc.contributor.authorAndersen, Oyvind M.
dc.date.accessioned2017-01-03T08:33:38Z
dc.date.available2017-01-03T08:33:38Z
dc.date.issued2005
dc.identifier.urihttp://hdl.handle.net/20.500.11889/3996
dc.description.abstractTwelve flavonoids, including seven flavones, four flavonols and one flavanone, were isolated from methanolic extract of the herbal drug ‘Crataegi folium cum flore’ (hawthorn leaves and flowers) by a combination of CC (over Amberlite XAD-7 and Sephadex LH-20) and preparative HPLC. Their structures, including that of the novel flavonol 8-methoxykaempferol 3-O-(6″-malonyl-β-glucopyranoside), were elucidated by homoand heteronuclear NMR and electrospray/MS. The 1H- and 13C-NMR of all compounds, including rotameric pairs of five flavone C-glycosides, were assigned. The presence and relative proportion of each rotamer was shown by various NMR experiments, including two-dimensional nuclear Overhauser and exchange spectroscopy, to depend on solvent, linkage position and structure of the C-glycosyl substituent.en_US
dc.language.isoenen_US
dc.subjectMateria medica, Vegetable - Analysisen_US
dc.subjectFlavonoids - Spectraen_US
dc.subjectFlavonoids - Therapeutic useen_US
dc.subject.lcshHawthorns
dc.titleIsolation and identification of flavonoids, including flavone rotamers, from the herbal drug ‘Crataegi Folium Cum Flore’ (Hawthorn)en_US
dc.typeArticleen_US
newfileds.departmentScienceen_US
newfileds.item-access-typeopen_accessen_US
newfileds.thesis-prognoneen_US
newfileds.general-subjectNatural Sciences | العلوم الطبيعيةen_US
Appears in Collections:Fulltext Publications

Files in This Item:
File Description SizeFormat 
Isolation and identification of flavonoids including flavone 2005.pdf191.69 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.