Four new and two known ether-soluble resin glycosides were isolated from popular sweet potato (the roots of Ipomoea batatas L. LAM., Kokei 14 go, Convolvulaceae) in Japan. Unlike ester-type dimers, batatins I and II, obtained from other sweet potato (Ipomoea batabas var. batatas), the glycosides were tetra or pentasaccharide monomers in which the sugar moieties are partially acylated by organic acids and combine with the aglycone, jalapinolic acid, to form a macrocyclic ester.
从日本的普通甘薯(Ipomoea batatas L. L
AM., Kokei 14 go,旋花科)中分离出了四种新的和两种已知的醚溶性
树脂甘苷。与从其他甘薯(Ipomoea batabas var. batatas)获得的酯型二聚体巴塔因I和II不同,这些甘苷是四糖或五糖单体,其中糖部分部分被有机酸酰化,并与无糖部分(jalapinolic acid)结合形成了一种大环酯。