刺人参甙O和P的分离与结构鉴定

ISOLATION AND STRUCTURE ELUCIDATION OF CIRENSENOSIDES O AND P FROM THE LEAVES OF OPLOPANAX ELATUS NAKAL

摘要: 自刺人参(Oplopanax elatus Nakai)叶中分离出两种新皂甙,分别命名为刺人参甙O和P。根据理化常数和光谱数据,甙O的结构鉴定为:3-表齐墩果酸-28-氧-α-L-吡喃鼠李糖基(1→4)-β-D-吡喃葡萄糖基(1→6)-β-D-吡喃葡萄糖甙(1);甙P的结构为3-氧-β-D-吡喃葡萄糖基白桦脂酸-28-氧-β-D-吡喃葡萄糖基(1→6)-β-D-吡喃葡萄糖甙(2)。

Abstract: Two new triterpenoid saponins were isolated from the leaves of Oplopanax elatus Nakai.By measuring physical and chemical constants and spectral data,their structures were elucidatedas 3-epi-oleanolic acid 28-O-α-L-rhamnopyranosyl(1→4)-β-D-glucopyranosyl(1→6)-β-D-glucopyranoside;3-O-β-D-glucopyranosyl betulinic acid 28-O-β-D-glucopyranosyl(1→6)-β-D-glucopyranoside and named as cirensenosides O and P, respectively.