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自刺人参（ＯｐｌｏｐａｎａｘｅｌａｔｕｓＮａｋａｉ）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）。
Two new saponins from the leaves of Oplopanaxelatus Nakai were isolated and designated as ginsenosides O and P, respectively. According to physicochemical constants and spectral data, the structure of 甙O was identified as: 3-epoxyuronic acid-28-oxo-α-L-rhamnopyranosyl (1→4)-β-D-glucopyranosyl (1→6)-β-D glucopyranoside (1); the structure of quinone P is 3-oxo-β-D-glucopyranosyl betulinate-28-oxy-β-D-glucopyranosyl (1→6)-β-D-glucopyranoside (2).