Studies of Chemical Constituents from Rosa chinensis Jacq

【作者】Wang, Lei; Fu, Ling; Jing, Linlin; Jia, Lu

【期刊名】Chemical Journal of Chinese Universities-Chinese.

【影响因子】 2012年: 0.856

【作者单位】 School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou 450001, PR China

【年，卷(期)：页码】2012, 33, 2457-2461.

【关键词】 Rosa chinensis Jacq.; Chemical constituent; Quercetin 3-0-(2",6"-digalloyl)-beta-D-glucoside

【摘要】In order to separate and purify the chemical constituents from Rosa chinensis Jacq., which have DPPH . scavenging capacity, dried Rosa chinensis flowers were extracted three times with 95% ethanol under reflux. This extract was then fractionated by column chromatography over silica gel, MCI gel, Sephadex LH-20, etc. A new compound [quercetin 3-0-(2 '', 6 ''-digalloyl)-beta-D-glucoside, 11 and nine known compounds (2-10) were isolated from Rosa chinensis Jacq. and identified using spectroscopic methods. Their antioxidant activity was assayed using DPPH . experiments. The results indicated that compounds 1, 2, 4 and 9 had good antioxidant activity.

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http://en.cnki.com.cn/Article_en/CJFDTOTAL-GDXH201211016.htm