A novel lupane-triterpene glycoside, called wujiapioside B (1), was isolated from the leaves of Acanthopanax gracilistylus (Araliaceae) together with three known lupane-triterpene glycosides, acankoreoside C (2), acantrifoside A (3) and 3-epibetulinic acid 28-O-α-L-rhamnopyranosyl-(1→4)-β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl ester (4). Based on spectroscopic data, the chemical structure of 1 was determined as 3α,23-dihydroxy-lup-20(29)-en-28-oic acid 28-O-α-L-rhamnopyranosyl-(1→4)-β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl ester. Compounds 2—3 were obtained for the first time from this plant and compound 4 has not been isolated from Acanthopanax genus yet.
从Acanthopanax gracilistylus (Araliaceae)的叶子中分离出了一种新的羽扇豆三萜苷,称为wujiapioside B (1),以及三种已知的羽扇豆三萜苷、Acankoreoside C (2)、acantrifoside A (3) 和 3-epibetulinic acid 28-O-α-L-rhamnopyranosyl-(1→4)-β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl ester (4)。根据光谱数据,1 的化学结构被确定为 3α,23-二羟基-lup-20(29)-烯-28-酸 28-O-α-<小>L小>-吡喃鼠李糖基-(1→4)-β-<小>D小>-吡喃葡萄糖基-(1→6)-β-<小>D小>-吡喃葡萄糖基酯。化合物 2-3 是首次从该植物中获得,化合物 4 尚未从 Acanthopanax 属植物中分离出来。