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[摘要]
从日本七叶树Aesculus turbinataBlume.种子的70%乙醇提取物中分得 4个三萜皂苷化合物,经光谱学分析鉴定了其中 2个化合物的结构,它们分别为;七叶皂苷Ⅰa;21β-巴豆酰基-22a-乙酸基原七叶皂苷配基-3β-O-[β-D-吡喃葡萄糖基(1-2)][β-D-吡喃葡萄糖基(1-4)]-β-D-吡喃葡萄糖醛酸(21β-tigloyl-22α-acety-lprotoaescigenin-3β-O-[β-D-glucopranosyl(1-2)][β-D-glucopyra-nosyl(1-4)]-β-D-glucopyra-nosiduronic acid)和七叶皂苷Ⅰb;21β-当归酰基-22α-乙酰基原七叶皂苷配基-3β-O-[β-D-吡喃葡萄糖基(1-2)][β-D-吡喃葡萄糖基(1-4)]-β-D-吡喃葡萄糖醛酸(21β-an-gelovl-22a-acetylprotoaescigenin-3β-O-[β-D-gluconyranosyl(1-2)][β-D-glucopyranosyl(l-4)]-β-D-glucopyranosiduronic acid),均为首次从日本七叶树种子中分得.
[Key word]
[Abstract]
Four triterpenoid saponins were isolated from 70% ethanolic extract of the seeds of Aesculus turbinata B1.Two of them were identified by spe-ctroscopic and chemical methods as escinⅠa:21β- tigloyl-22a-acetyl-protoaescige(1-2)][β-D-glucopyranosyl(l-4)]-β-D-glucopyranosiduronic aci-d,and escinⅠb:21β-angeloyl-22α-acetylprotoaescigenin-3β-O-[β-D-glucopyranosyl(1-2)][β-D-glucopyranosyl(1-4)]-β-D-glucopyranosiduronic acid. Both were obtained from A.turbinata for the first time.
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