[Chemical constituents of ethyl acetate fraction from Hypericum hengshanense].Zhong Yao Cai. 2013 Oct; 36(10):1611-3.ZY
To study the constituents of ethyl acetate fraction form Hypericum hengshanense.
The constituents were isolated and purified by chromatography on silica gel and their structures were elucidated by MS and NMR spectral analysis.
Ten compounds were isolated and identified as: hyperoside (1), hypericin (2), quercetin (3), quercitrin (4), sesamin (5), betulonic acid (6), rutin (7), kaempferol (8), beta-daucosterol (9), beta-sitosterol (10).
All compounds are obtained from this plant for the first time.