期刊
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
卷 22, 期 2, 页码 973-976出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bmcl.2011.12.012
关键词
Caragana sinica; Fabaceae; Oligostilbenes; Antioxidant activity
资金
- Chungbuk National University
Two new oligostilbenes, caragasinins A (5) and B (10), and eight known compounds, kobophenol A (1), (+)-alpha-viniferin (2), (+)-ampelopsin F (3), pallidol (4), (+)-isoampelopsin F (6), miyabenol C (7), carasinaurone (8) and caraphenol B (9) were isolated from the ethylacetate-soluble extract of the roots of Caragana sinica. The structures of the isolates were determined on the basis of extensive spectroscopic analysis including 1D, 2D NMR and HRESI-MS. These compounds were assessed for antioxidant activities. Caragasinin A (5), caraphenol B (9), and caragasinin B (10) showed moderate DPPH scavenging activity and lipid peroxidation inhibitory activities with IC50 values ranging from 34.7 +/- 1.0 to 89.1 +/- 2.3 mu M. (C) 2011 Elsevier Ltd. All rights reserved.
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