棕粑叶中甾体皂甙和皂甙元的分离鉴定

ISOLATION AND IDENTIFICATION OF STEROIDAL SAPONINS AND SAPOGENINS FROM ASPIDISTRA ZONGBAYI K.Y.LANG ET Z.Y.ZHU

从棕粑叶(Aspidistra zongbayi K.Y.Lang et Z.Y.Zhu)根茎正丁醇提取物中分离得到两个甾体皂甙。通过物理和化学方法鉴定为蜘蛛抱蛋皂甙(3-0-{β-D-吡喃葡萄糖(1→2)-[β-D-吡喃木糖-(1→3)]-β-D-吡喃葡萄糖-(1→4)-β-D-吡喃半乳糖}-薯蓣皂甙元)和原蜘蛛抱蛋皂甙。从正丁醇部分酸水解物中分到△^(3,5)-脱氧替告皂甙元、薯蓣皂甙元、静特诺皂甙元。从根茎中还得到β-谷甾醇。

Two steroidal saponins were isolated from the n-BuOH extract of the rhizome of Aspidi- stra zongbayi K.Y.Lang et Z.Y.Zhu.Their structures were elucidated as 3-O-{β-D-glucopyr- anosyl(1→2)-[β-D-xylopyranosyl(1→3)]-β-D-glucopyranosyl(1→4)-β-D-glactopyranosyl}- diosgenin(aspidistrin)and proto-aspidistrin by physical and chemical methods.Three steroid- al sapogenins were isolated from the acid-treated n-BuOH extract.They were identified as△~3.5 deoxytigogenin,diosgenin and gentrogenin,β-sitosterol was isolated from the rhizome of this plant also.