CAS: 39524-08-8; (2S,3R,4S,5S,6R)-3,4,5-Trihydroxy-6-((((2R,3R,4S,5S,6R)-3,4,5-Trihydroxy-6-(Hydroxymethyl)Tetrahydro-2H-Pyran-2-yl)Oxy)Methyl)Tetrahydro-2H-Pyran-2-Yl (4As,6As,6Br,8Ar,9R,10S,12Ar,12Br,14Bs)-9-(Hydroxymethyl)-2,2,6A,6B,9,12A-Hexamethyl-10-(((2S,3R,4S,5S)-

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CAS号14216-03-6 常春藤苷C； 常春藤皂苷C | CAS号12672-45-6 葳岩仙皂苷 D

📜Hederagenin-3-O-α-L-Rhamnopyranosyl-(1->2)-O-α-L-Arabinopyranosyl-28-O-α-L-Rhamnopyranosyl-(1->4)-O-6-O-Acetyl-β-D-Glucopyranosyl-(1->6)-O-β-D-Glucopyranosyl Ester置于氢氧化钾,硫酸体系中,用 乙醇 用作溶剂,化学反应 22.0H,反应生成川续断皂苷vi
参考文献:Studies On The Constituents Of Hedera Rhombea Bean. Iv. On The Hederagenin Glycosides. (2)
标题:Studies On The Constituents Of Hedera Rhombea Bean. Iv. On The Hederagenin Glycosides. (2)
摘要:基于化学和物理化学证据,确定了从常春藤(hedera Rhombea Bean,五加科)的茎和树皮中分离出的两种新的常春素双甙的结构,分别命名为kizuta皂苷k8(x)和k11(i),其结构如下:X为3-O-α-L-阿拉伯呋喃糖基-常春素28-O-α-L-鼠李呋喃糖基-(1->4)-6-O-乙酰基-β-D-葡萄吡喃糖基-(1->6)-β-D-葡萄吡喃糖基酯;I为3-O-α-L-鼠李呋喃糖基-(1->2)-α-L-阿拉伯呋喃糖基-常春素28-O-α-L-鼠李呋喃糖基(1->4)-6-O-乙酰基-β-D-葡萄吡喃糖基-(1->6)-β-D-葡萄吡喃糖基酯.基于化学和物理化学证据,认为葡萄糖苷混合物(xiii)是油菜甾醇(微量),豆甾醇和β-谷甾醇的β-D-葡萄吡喃糖苷混合物.
Doi:10.1248/cpb.33.3473