Four new bitter quassinoid glycosides, yadanziosides K, M, N, and O were isolated from Brucea javanica (L.) Merr and their structures were determined by spectral measurement and chemical means. The aglycone of yadanzioside O was found to exhibit a significant antitumor activity against the murine P388 lymphocytic leukemia and this aglycone could be prepared from brusatol.
从Brucea javanica (L.) Merr中分离出了四种新的苦槲皮苷,即yadanziosides K、M、N和O,并通过光谱测量和化学方法确定了它们的结构。研究发现,山丹子苷 O 的苷元对小鼠 P388 淋巴细胞白血病具有显著的抗肿瘤活性,这种苷元可以从布鲁沙醇中制备出来。