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[Studies on the chemical constituents in radix Astilbes chinensis]
Hong-xiang Sun1, Yi-ping Ye, Ke Yang
1College of Animal Sciences, Huajiachi Campus, Zhejiang University, Hangzhou 310029, Zhejiang, China. sunhx@zju.edu.cn
Objective:
To isolate and determine the chemical constituents from Astilbe chinensis.
Method:
Four compounds were isolated and purified by extraction and column chromatography on silica gel. The chemical structures were determined on the basis of physical-chemical evidence and extensive spectral analysis(HR-EIMS, EIMS, 13C-NMR, 1H-NMR, DEPT, 1H-1H-COSY, HMQC and HMBC).
Result:
Their structures were elucidated as beta-sitosterol palmitate I, daucosterol II beta-sitosterol III and Bergenin IV, respectively.
Conclusion:
Compound I and II were isolated from A. chinensis for the first time.
