期刊
PHYTOCHEMISTRY
卷 57, 期 4, 页码 559-564出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0031-9422(01)00066-8
关键词
Centaurea bracteata; Asteraceae; Fiordaliso bratteato; flavonoids; quercetin 3-O-beta-D-glucopyranoside-3 '-sulphate; centabractein; isokaempferide 7-O-beta-D-glucopyranouronide; bractoside
The flowering aerial parts of Centaurea bracteate Scop. (Asteraceae) have been studied for the: first rime. Nineteen compounds were isolated and identified, namely a sterol glucoside, two phenolic acids, three quinic acid derivative es. and 13 flavonoids. two of which, art: new natural products. Structural elucidation was performed mainly by mean of FABMS, 1D and 2D NMR spectroscopy. (C) 2001 Elsevier Science Ltd. All rights reserved.
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