刺人参叶中两种三萜皂苷的分离和结构鉴定

GlycosidesintheleavesofOplopanaxelatus

目的：研究刺人参叶的化学成分。方法：采用了各种层析分离技术，分得单体，经理化常数和光谱解析确定结构。结果：从刺人参叶中分得两种皂苷，其结构分别鉴定为常春藤皂苷配基－２８－氧－α－Ｌ－吡喃鼠李糖基（１→４）－β－Ｄ－吡喃葡萄糖基（１→６）－β－Ｄ吡喃葡萄糖苷（Ａ）；３－表白桦脂酸－２８－氧－α－Ｌ－吡喃鼠李糖基（１→４）－β－Ｄ－吡喃葡萄糖基（１→６）－β－Ｄ－吡喃葡萄糖苷（Ｂ）。结论：这两种皂苷均为首次从刺人参叶中分离得到。

OBJECTIVE:TostudythechemicalconstituentsofthedriedleavesofOplopanaxelatusNakai.METHODS:Isolationandidentificationwerecarriedoutbyusingvariouschromatographytechniquesandspectralmethods.RESULTS:Twosaponinswereisolated.Theirstructureswereidentifiedashederagenin28-O-α-L-rhamnopyranosyl(1→4)-β-D-glucopyranosyl(1→6)-β-D-glucopyranoside,3-epibetulinicacid28-O-α-L-rhamnopy-ranosyl(1→4)-β-D-glucopyranosyl(1→6)-β-D-glucopyranoside,respectively.CONCLUSION:ThetwosaponinswereisolatedforthefirsttimefromOplopanaxelatusNakai.