Abstract Two new furostanol glycosides, trigofoenosides F and G, have been isolated as their methyl ethers from the methanolic extract of Trigonella foenum-graecum seeds (Leguminosae). The structures of the original glycosides have been determined as (25 R )-furost-5-en-3β,22,26-triol, 3- O -α- l -rhamnopyranosyl (1 → 2)β- d -glucopyranosyl (1 → 6)β- d -glucopyranoside; 26- O -β- d -glucopyranoside
摘要 两种新的
呋喃甾醇糖苷,trigofoenosides F 和 G,已从胡麻种子 (Leguminosae) 的
甲醇提取物中分离出它们的甲基醚。原始糖苷的结构已确定为 (25 R )-furost-5-en-3β,22,26-triol, 3-O -α- l -rhamnopyranosyl (1 → 2)β- d -glupyranosyl (1 → 6)β-d-
吡喃
葡萄糖苷;26- O -β- d -
吡喃
葡萄糖苷和 (25 R )-furost-5en-3β,22,26-triol, 3- O -α-L -rhamnopyranosyl (1 → 2) [β- d -xylopyranosyl (1 → 4)]β-d-
吡喃
葡萄糖苷(1→6)β-d-
吡喃
葡萄糖苷;分别为 26-O-β-d-
吡喃
葡萄糖苷。