来自特兰西瓦尼亚风铃草花中的常春藤皂苷元糖苷。
Hederagenin glycosides from the flowers of Cephalaria transsylvanica.
作者信息
Kirmizigül S, Rose M E
机构信息
Department of Organic Chemistry, Faculty of Science, Ege University, Izmir, Turkey.
出版信息
Planta Med. 1997 Feb;63(1):51-4. doi: 10.1055/s-2006-957603.
Three new triterpenoidal saponins, 3-O-[beta-D-glucopyranosyl(1-->4)-beta-D-Glucopyranosyl(1-->3)-alpha-L- rhamnopyranosyl (1-->4)-beta-D-xylopyranosyl]-hederagenin 28-O-[beta-D-glucopyranosyl (1-->4)-beta-D-glucopyranosyl] ester (1), 3-O-[beta-D-glucopyranosyl (1-->3)-alpha-L-rhamnopyranosyl(1-->2)-beta-D-xylopyranosyl]-hederage nin 28-O-[beta-D-glucopyranosyl(1-->4)-beta-D-glucopyranosyl] ester (2), and 3-O-[alpha-L-rhamnopyranosyl(1-->4)-beta-D-xylopyranosyl]-hederagenin (3) were isolated from the flowers of Cephalaria transsylvanica. Two new prosapogenins, 3-O-[beta-D-glucopyranosyl (1-->4)-beta-D-glucopyranosyl(1-->3)-alpha-L-rhamnopyranosyl(1-->4)- beta-D-xylopyranosyl]-hederagenin (4) and 3-O-[beta-D-glucopyranosyl (1-->3)-alpha-L-rhamnopyranosyl(1-->2)-beta-D-xylopyranosyl]-hederage nin (5) were also isolated after cleavage of the ester-glycosidic linkage of the bisdesmosidic compounds. Structure elucidation was carried out chemically and spectroscopically.
从特兰西瓦尼亚风铃草的花中分离出三种新的三萜皂苷，即3 - O - [β - D - 吡喃葡萄糖基(1→4)-β - D - 吡喃葡萄糖基(1→3)-α - L - 鼠李吡喃糖基(1→4)-β - D - 木吡喃糖基]-常春藤皂苷元28 - O - [β - D - 吡喃葡萄糖基(1→4)-β - D - 吡喃葡萄糖基]酯(1)、3 - O - [β - D - 吡喃葡萄糖基(1→3)-α - L - 鼠李吡喃糖基(1→2)-β - D - 木吡喃糖基]-常春藤皂苷元28 - O - [β - D - 吡喃葡萄糖基(1→4)-β - D - 吡喃葡萄糖基]酯(2)和3 - O - [α - L - 鼠李吡喃糖基(1→4)-β - D - 木吡喃糖基]-常春藤皂苷元(3)。还从双糖链苷化合物的酯糖苷键断裂后分离出两种新的前皂苷元，即3 - O - [β - D - 吡喃葡萄糖基(1→4)-β - D - 吡喃葡萄糖基(1→3)-α - L - 鼠李吡喃糖基(1→4)-β - D - 木吡喃糖基]-常春藤皂苷元(4)和3 - O - [β - D - 吡喃葡萄糖基(1→3)-α - L - 鼠李吡喃糖基(1→2)-β - D - 木吡喃糖基]-常春藤皂苷元(5)。通过化学和光谱方法进行结构解析。
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