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从三七 (Panaxnotoginseng)根总皂甙的弱酸水解产物中分离得到三个原人参二醇型单糖链配糖体 .通过光谱方法 ,鉴定其结构分别为人参皂甙Rg5,2 0 (R) 人参皂甙 Rg3与 2 0(S) 人参皂甙Rg3.应用 2DNMR技术 ,对它们的1 H和1 3C化学位移进行了全归属
Three original ginsenoside monosaccharide chain glycosides were isolated from the weak acid hydrolysis products of Panaxnotoginseng saponins, and their structures were identified as ginsenoside Rg5,2 0 (R) ginsenosides Rg3 and 20 (S) ginsenoside Rg3. Their 1 H and 1 3 C chemical shifts were all assigned using 2D NMR techniques