Saponin and sapogenol. XIII. Structures of three soybean saponins: Soyasaponin I, soyasaponin II, and soyasaponin III.
摘要:
大豆皂苷 I(主要)、II 和 III 均含有大豆皂苷元 B (2) 作为常见的糖苷,它们是从大豆(Glycine max MERRILL,豆科)的甲醇提取物中分离出来的。根据化学和物理化学证据,大豆皂苷 I 的结构被阐明为 3-O-[α-L-鼠李糖吡喃糖基 (1→2)-β-D-半乳糖吡喃糖基 (1→2)-β-D-葡萄糖醛酸吡喃糖基]-大豆皂苷元 B (7),大豆皂苷 II 和 III 的结构分别为 3-O-[α-L-鼠李糖吡喃糖基 (1→2)-α-L-阿拉伯糖吡喃糖基 (1→2)-β-D-葡萄糖醛酸吡喃糖基]-大豆皂苷元 B (8) 和 3-O-[β-D-半乳糖吡喃糖基 (1→2)-β-D-葡萄糖醛酸吡喃糖基]-大豆皂苷元 B (9)。
From the roots of Glycyrrhiza yunnanensis, collected in Yunnan, China, six new oleanane-type triterpene glycosides named yunganosides A1, B1, C1, D1, E2 and F2 were isolated together with hypaphorine. The structures of these glycosides were established by spectroscopic and chemical means.
KONOSHIMA, TAKAO;KOZUKA, MUTSUO;HARUNA, MITSUMASA;ITO, KAZUO;KIMURA, TAKE+, CHEM. AND PHARM. BULL., 37,(1989) N0, C. 2731-2735
Fifteen derivatives of soyasapogenol A (1), which is another aglycon moiety of soyasaponins from soybean together with soyasapogenol B (2), were prepared and their in vitro hepatoprotective effects were evaluated.