[Studies on the chemical constituents in radix Astilbes chinensis].
OBJECTIVE
To isolate and determine the chemical constituents from Astilbe chinensis.


METHODS
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).


RESULTS
Their structures were elucidated as beta-sitosterol palmitate I, daucosterol II beta-sitosterol III and Bergenin IV, respectively.


CONCLUSIONS
Compound I and II were isolated from A. chinensis for the first time.
Sun
Hong-xiang
HX
College of Animal Sciences, Huajiachi Campus, Zhejiang University, Hangzhou 310029, Zhejiang, China. sunhx@zju.edu.cn
Ye
Yi-ping
YP
Yang
Ke
K
D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D031995:Saxifragaceae / Q000737:chemistry*; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification*
D012855:Sitosterols; C479126:sitosterol palmitate; C011015:lyoniside