梓白皮化学成分研究

Studies on Chemical Constituents of Barks From Cataipa Ovata G.Don

目的 研究梓白皮 Catalpa Ovata G.Don的化学成分。 方法 采用硅胶柱、Sephadex LH-2 0柱色谱分离纯化 ,通过理化常数和光谱分析鉴定化合物的结构。 结果 从梓白皮分离得到 7个化合物。根据波谱分析和理化数据 ,鉴定出其中的 5个化合物分别为 :梓苷 ( catalposide, )、香草酸 ( vanillic acid, )、β-胡萝卜苷 (β-daucosterol, )、十六碳酸 ( palmitic acid, )、β-谷甾醇 (β-sitosterol, )。结论 化合物

OBJECTIVE To study the chemical constituents of barks from Cataipa Ovata G.Don.METHODS Isolation and purification were carried out by silica gel and Sephadex LH-20 chromatography etc.Constituents were identified and structurally elucidated by physicochemical properties and spectral analysis.RESULTS Seven compounds were obtained,five of them were determined as catalposide(Ⅰ),vanillic acid(Ⅱ),β daucosterol(Ⅲ),palmitic acid(Ⅳ),β sitosterol(Ⅴ).CONCLUSION Compounds I was isolated from the barks of the plant for the first time.