Three bitter quassinoids, yadanziolides A, B, and C (1, 2 and 3), were isolated from seeds of Brucea javanica, known as"Ya-dan-zi" in Chinese folklore and their structures have been established from chemical transformation and spectral analysis.
Constituents of Seeds of<i>Brucea javanica</i>. Structures of New Bitter Principles, Yadanziolides A, B, C, Yadanziosides F, I, J, and L.
Three new quassinoids and four new quassinoid glycosides were isolated from water-soluble fraction of methanol extract of seeds of Brucea javanica (L.) Merr, known as “Ya-dan-zi” in Chinese folklore and their structures were determined by spectral and chemical means. Yadanziosides F, I, J, and L were demonstrated to have antileukemic activity.
从中国民间传说中的 "丫旦子"(Brucea javanica (L.) Merr)种子甲醇提取物的水溶性部分中分离出3种新的槲皮素和4种新的槲皮素苷,并通过光谱和化学方法确定了它们的结构。结果表明,雅丹子苷 F、I、J 和 L 具有抗白血病活性。