Hebecarposides A−K, antiproliferative lanostane-type triterpene glycosides from the leaves of Lyonia ovalifolia var. hebecarpa
作者:Yang Teng、Hanqi Zhang、Junfei Zhou、Guanqun Zhan、Guangmin Yao
DOI:10.1016/j.phytochem.2018.03.012
日期:2018.7
Eleven previously undescribed lanostane-type triterpene glycosides, hebecarposides A-K, were isolated from the leaves of Lyonia ovalifolia var. hebecarpa (Ericaceae), along with two known analogues, lyonifolosides L and O. The structures of hebecarposides A-K were established by extensive spectroscopic analysis and chemical methods, and the absolute configuration of C-24 in hebecarposides A and E was
从 Lyonia ovalifolia var. 的叶子中分离出 11 种以前未描述的羊毛脂烷型三萜糖苷 hebecarposides AK。hebecarpa(杜鹃花科),连同两种已知的类似物,lyonifolosides L 和 O。 hebecarposides AK 的结构是通过广泛的光谱分析和化学方法建立的,hebecarposides A 和 E 中 C-24 的绝对构型被确定为 S 和R,分别通过 Mo2(OAc)4 诱导的电子圆二色性方法。这是关于在 L.ovalifolia var. 中存在羊毛甾烷型三萜糖苷的第一份报告。白果。评估了所有化合物对五种癌细胞系 SMMC-7721、HL-60、SW480、MCF-7 和 A-549 以及正常上皮细胞系 BEAS-2B 的抗增殖活性,它们都没有对正常细胞系 BEAS-2B 表现出一般的细胞毒性。有趣的是,hebecarposides