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[摘要]
从峨眉雪胆Hemsleyaemiensis块根中分得7个化合物.经理化性质和光谱分析分别鉴定为齐墩果酸-3-O-a-L-吡喃阿拉伯糖(1→3)-β-D-吡喃葡萄糖醛酸甙(Ⅰ)、竹节参甙Ⅳα(Ⅰ)、雪胆皂甙Ma1(Ⅲ)、雪胆皂甙G1(Ⅳ)、雪胆皂式H1(Ⅴ)、雪胆甲素(Ⅵ)和雪胆乙素(Ⅶ).这些化合物均系首次从该植物中分得,其中化合物Ⅰ为首次从雪胆属植物中分得.
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[Abstract]
Seven compounds were isolated from the tubers of Hemsleya emeaessis L. T. Shen et W. J. Chang and identified as oleanolic acid-3-O-a-L-arabinopyranosyl(1→3)-β-D-glucuropyranoside (I),chikusetsusaponin Ⅳα(Ⅰ),hemslosides Ma1(Ⅲ) ,G1(Ⅳ),H1(Ⅴ),dihydrocucurbitacin F-25-O-acetate(Ⅵ)and dihydrocucurbitacin F(Ⅶ)on the basis of chemical and physical properties and spectral data. They all were isolated from this plant for the first time. Among them ,I was obtaincd for the firsi fime from the genus of Hemslega Cogn.
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