Flavonol glycosides, nigelflavonosides A-F from the whole plant of Nigella glandulifera (Ranunculaceae).
Six new flavonol glycosides, nigelflavonosides A-F (1-6), together with a known compound (7) were isolated from the whole plant of Nigella                         glandulifera Freyn et Sint (Ranunculaceae). Structure elucidation, especially the localization of the glycosyl or acetyl groups, and complete (1)H- and (13)C-NMR assignments of these compounds were carried out using one- and two-dimensional NMR measurements, including (1)H- and (13)C-NMR, (1)H-(1)H COSY, TOCSY, HMQC, HMBC and NOESY, in addition to HRESI-TOF-MS experiments.
Tianjin State Key Laboratory of Modern Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin, 300193, China.
Yi
Y
Zhang
Dandan
D
Ge
Qiu
Q
Chen
Wei
W
He
Lifeng
L
Han
Hongyan
H
Wei
Xiaoguang
X
Jia
Tao
T
Wang
D044948:Flavonols / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D031844:Nigella / Q000737:chemistry*
D044948:Flavonols; D006027:Glycosides