期刊
JOURNAL OF NATURAL PRODUCTS
卷 71, 期 11, 页码 1800-1805出版社
AMER CHEMICAL SOC
DOI: 10.1021/np800083x
关键词
-
资金
- National Fund for Distinguished Young Scholars [30625040]
- National Natural Science Foundation of China [20672145, 20432030]
- National Key Basic RD (973) Project [2004CB518906]
- PCSIRT [IRT0514]
An efficient procedure based on biological and chemical screening has been performed to investigate the antioxidant constituents of the bark of Lysidice brevicalyx, Wei. The procedure allowed the rapid identification of known compounds and tentative characterization of unknown compounds by online LC/UV/ESIMSn analyses of the antioxidant fraction. Targeted isolation of the unknown compounds has led to the discovery of seven new stilbene glycosides, named lysidisides L-R (1-7), together with a known stilbene glycoside, (E)-resveratrol 3-O-rutinoside (8). The structures of these compounds were further determined on the basis of spectroscopic and chemical evidence. The antioxidant activities of compounds 1-8 and two related compounds, (E)-polydatin (9) and lysidiside E (11), were evaluated. The known compound (E)-polydatin (9) showed antioxidant activity at concentrations of 10(-4) and 10(-5) mol/L.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据