作者:Yu Zhao、Chunyan Ni、Yuting Zhang、Li Zhu
DOI:10.1002/ardp.201200035
日期:2012.8
A series of diphyllin glycosides were synthesized from diphyllin by phase transfer catalysis glycosylation, deprotection, and etherification, and the structures were established by 1H NMR, 13C NMR, and HRMS. These glycosides were evaluated for their in vitro cytotoxicity against HCT‐116, A549, and A549T cancer cell lines by MTT assay, and most of them were cytotoxic at submicromolar concentrations
通过相转移催化糖基化、脱保护、醚化等方法,以枳椇为原料合成了一系列枳木甙,其结构经1H NMR、13C NMR和HRMS确定。通过 MTT 试验评估了这些糖苷对 HCT-116、A549 和 A549T 癌细胞系的体外细胞毒性,其中大多数在亚微摩尔浓度下具有细胞毒性。它们对紫杉醇耐药细胞系 A549T 也有效。kDNA 脱链试验表明,这些化合物中的大多数抑制了拓扑异构酶 IIα 介导的 kDNA 脱链。此外,体外微管蛋白聚合研究表明,化合物 5 和 6 具有类似紫杉醇的作用方式的抗微管活性。综上所述,这些结果表明这些双叶甙对 TopoII 和微管蛋白均起作用。