title: A new flavonol glycoside from the seeds of Nigella glandulifera.
abstract: A new flavonol glycoside, kaempferol 3-O-α-L-rhamnopyranosyl (1 → 6)-O-[β-D-glucopyranosyl (1 → 2)-O-β-D-galactopyranosyl (1→2)]-O-β-D-glucopyranoside (1), together with a known compound, kaempferol 3-O-β-D-glucopyranosyl (1 → 2)-O-β-D-galactopyranosyl (1 → 2)-O-β-D-glucopyranoside (2) was isolated from the seeds of Nigella glandulifera. Their structures were elucidated on the basis of spectral analysis, including ESI-MS, ESI-MS/MS, HR-ESI-MS, DQF-COSY, TOCSY, HSQC and HMBC techniques.
authors.affiliation: Department of Pharmacy Engineering , Tianjin University of Technology , Tianjin 300384 , China. coumarin1968@hotmail.com
authors.forename: Yu-Ming
authors.initials: YM
authors.lastname: Liu
authors.forename: Qing-Hua
authors.initials: QH
authors.lastname: Liu
authors.forename: Bao-Quan
authors.initials: BQ
authors.lastname: Chen
mesh_terms: D044948:Flavonols / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry*; D044949:Kaempferols / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D031844:Nigella / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry*; D053719:Tandem Mass Spectrometry
chemical_list: D044948:Flavonols; D006027:Glycosides; D044949:Kaempferols; C006552:kaempferol