目的:研究金背枇杷叶中的化学成分。方法:利用色谱方法分离和纯化化合物,并通过光谱方法及理化性质鉴定其结构。结果:从金背枇杷叶中共分离得到6个化合物,分别鉴定为:金丝桃苷(1)、萹蓄苷(2)、棉花皮素-3-O-β-D-半乳糖苷(3)、槲皮素(4)、桦木苷(5)、β-谷甾醇(6)。结论:其中,化合物1~4、6为首次从该植物中分离得到。 Objective: To study the chemical constituents in leaves of Eriobotrya japonica. Methods: Compounds were isolated and purified by chromatography. Their structures were identified by spectroscopic methods and physicochemical properties. Results: Six compounds were isolated from the leaves of Eriobotrya japonica, identified as hyperin (1), pogonin (2), cottonseedin-3-O-β-D-galactoside ), Quercetin (4), betulin (5), β-sitosterol (6). Conclusion: Among them, compounds 1 ~ 4,6 were isolated from this plant for the first time.