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[Chemical constituents of ethyl acetate fraction from Hypericum hengshanense]
Objective:
To study the constituents of ethyl acetate fraction form Hypericum hengshanense.
Methods:
The constituents were isolated and purified by chromatography on silica gel and their structures were elucidated by MS and NMR spectral analysis.
Results:
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).
Conclusion:
All compounds are obtained from this plant for the first time.
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