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[Studies on flavonoids from leave of Eucommia ulmoides Oliv]
1School of Pharmaceutical Sciences, Beijing Medical University, Beijing 100083, China.
Abstract
Objective:
To separate the constituents from Eucommia ulmoides.
Method:
The constituents were separated by the repeated chromatography and identified by spectral methods.
Result:
The seven compounds were obtained, which were kaempferol(1), quercetin(2), astragalin(3), hirsutin(4), rutin(5), 3,4-dihydrobenzonic acid(6), ethyl glucopyranoside(7).
Conclusion:
Compounds 3-7 were obtained from leaves of E. ulmoides for the first time.