Synthesis and anti-cancer activity evaluation of novel prenylated and geranylated chalcone natural products and their analogs
作者:Hao-Meng Wang、Li Zhang、Jiang Liu、Zhao-Liang Yang、Hong-Ye Zhao、Yao Yang、Di Shen、Kui Lu、Zhen-Chuan Fan、Qing-Wei Yao、Yong-Min Zhang、Yu-Ou Teng、Yu Peng
DOI:10.1016/j.ejmech.2015.01.007
日期:2015.3
by 1H NMR, 13C NMR and HRMS. The anticancer activity of these new chalcone derivatives against human tumor cell line K562 were evaluated by MTT assay in vitro. SAR studies suggested that the 5′-prenylation/geranylation of the chalcones significantly enhance their cytotoxic activity. Among them, Bavachalcone (1a) displayed the most potent cytotoxic activity against K562 with IC50 value of 2.7 μM. The
以区域选择性碘化和Suzuki偶联反应为关键步骤,合成了四个带有异戊烯基或香叶基的天然查耳酮,分别为bavachalcone(1a),xanthoangelol(1b),isobavachalcone(1c)和isoxanthoangelol (1d)。首次完成异黄蒽酚的全合成(1d),总收率达36%。还通过烷基化,区域选择性碘化,羟醛缩合,Suzuki偶联和[1,3]-σ重排合成了一系列二戊基化和二geranyyl查尔酮类似物。通过1 H NMR证实了11种新衍生物的结构,131 H NMR和HRMS。MTT法体外评价了这些新的查尔酮衍生物对人肿瘤细胞株K562的抗癌活性。SAR研究表明,查耳酮的5'-异戊烯基/香叶基化显着增强了它们的细胞毒活性。其中,Bavachalcone(1a)对K562表现出最强的细胞毒活性,IC 50值为2.7μM 。形态变化和膜联蛋白-V / PI染色研究表