[Studies on flavonoids from leave of Eucommia ulmoides Oliv].Zhongguo Zhong Yao Za Zhi. 2000 May; 25(5):284-6.ZZ
To separate the constituents from Eucommia ulmoides.
The constituents were separated by the repeated chromatography and identified by spectral methods.
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).
Compounds 3-7 were obtained from leaves of E. ulmoides for the first time.