Objective: To study the chemical constituents from the leaves of Eucommia ulmoides.
Method: The constituents were isolated by chromatography method and the structures were identified on the basis of spectral analysis.
Result: Six compounds, ursolic acid(1), beta-sitosterol(2), p-coumaric(3), caffeic acid ethyl ester(4), chlorogenic acid(5) and syringin(6) were obtained.
Conclusion: Compound 3, 4, 5 were obtained from the plant for the first time.