New Flavonol Glycosides from the Seeds of Desmodium styracifolium

被引：0
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作者：
Xuan-xuan Cheng
Xiao-min Tang
Chu-chu Guo
Chun-rong Zhang
Quang Yang
机构：
[1] Guangdong Pharmaceutical University,Key Laboratory of State Administration of Traditional Chinese Medicine for Production & Development of Cantonese Medicinal Materials
[2] Guangdong Pharmaceutical University,Guangzhou Comprehensive Experimental Station of National Industrial Technology System for Chinese Materia Medica
[3] Guangdong Pharmaceutical University,Guangdong Engineering Research Center of Good Agricultural Practice&Comprehensive Development for Cantonese Medicinal Materials
[4] Guangdong Pharmaceutical University,School of Chinese Materia Medica
来源：
Chemistry of Natural Compounds | 2018年 / 54卷
关键词：
antioxidant activity; free radical scavenging; flavonol glycosides;
D O I：
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中图分类号：
学科分类号：
摘要：
In this study, different extracts from the seeds of Desmodium styracifolium were screened for their potential antioxidant activities by reducing power and hydroxyl and superoxide radical assays. From the above tests, n-BuOH extract of D. styracifolium seeds exhibited good reductive potential and obvious scavenging effect on hydroxyl (OH), and superoxide (O2–) radicals. Therefore, bioassay-guided fractionation and a chemical investigation of n-BuOH extract were carried out, and three new flavonol glycosides (1, 2, 4) together with a known compound (3) were isolated. The chemical structures were further determined by a combination of 1D, 2D NMR, and HR-MS.
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页码：846 / 850
页数：4
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