Three new dihydroflavonols with free radical scavenging activity from Ribes himalense Royle ex Decne

Chuang Liu, Yuqing Lei, Gang Li, Chen Yuan, Yue Lv, Song Yu, Yun Shao & Jun Dang
Ribes himalense Royle ex Decne, a small shrub, is widely used as a Tibetan medicine in Chinese folk. In this study, three novel 1,1-diphenyl-2-picrylhydrazyl inhibitors named Rihimaside A, Rihimaside B, and Rihimaside C, as well as one known 1,1-diphenyl-2-picrylhydrazyl inhibitor, dihydromyricetin, were isolated from the leaves and stems of Ribes himalense Royle ex Decne using online high performance liquid chromatography-1,1-diphenyl-2-picrylhydrazyl activity screening system combined with medium and high-pressure liquid chromatography. All four 1,1-diphenyl-2-picrylhydrazyl inhibitors are...
1 citation reported since publication in 2021.
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