Synthesis and cytotoxicity of hybrids of 1,3,4- or 1,2,5-oxadiazoles tethered from ursane and lupane core with 1,2,3-triazole
作者:Sergey A. Popov、Marya D. Semenova、Dmitry S. Baev、Tatiana S. Frolova、Michael A. Shestopalov、Chengzhang Wang、Zhiwen Qi、Elvira E. Shults、Māris Turks
DOI:10.1016/j.steroids.2020.108698
日期:2020.10
linked to C-28 position of triterpene backbone demonstrated marked cytotoxic activity towards MCF-7 and HepG2 cells. The most active ester of ursolic acid with (1-((4-methyl-2-oxido-1,2,5-oxadiazol-3-yl)methyl)-1H-1,2,3-triazol-4-yl)methyl substituent and 3-O-acetyl group was superior in activity and selectivity over doxorubicin and ursolic acid on MCF-7 cells. The length of the carbon spacer group may be
Ursane 和 lupane 型(1-((5-芳基-1,3,4-恶二唑-2-基)甲基)-1H-1,2,3-三唑-4-基)甲基和(1-((4 -methyl-2-oxido-1,2,5-oxadiazol-3-yl)methyl)-1H-1,2,3-triazol-4-yl)methyl 杂化物是通过 1,3-环加成反应制备的 唑-衍生的叠氮化物具有连接到三萜核心的 C-3 和 C-28 位的炔酯,并测试了细胞毒性。1,3,4-恶二唑的杂合化合物连接在三萜骨架的 3-和 28- 位上通过三唑间隔基和 1,2,5-恶二唑或 1,3,4-恶二唑的组合,与琥珀酸酯接头和 1,2 相连, 3-三唑在乌苏烷骨架的位置3-,是相对于所有测试的癌细胞不活动的。最终,呋喃烷片段和连接到三萜骨架 C-28 位置的 1,2,3-三唑的组合显示出对 MCF-7 和 HepG2 细胞的显着细胞毒活性。熊果酸与 (