作者:Zhen Rao、Xin Liu、Wen Zhou、Jing Yi、Shao-Shun Li
DOI:10.1016/j.ejmech.2011.05.065
日期:2011.9
β-hydroxyisovalerylshikonin analogues bearing oxygen-containing substituents at the side-chain hydroxyl of shikonin were designed and synthesized. The cytotoxicities of these compounds were evaluated in vitro against multi-drug resistant (MDR) cell lines DU-145 and HeLa. Most compounds exhibited significant inhibitory activity on both cell lines. The structure–activity relationship showed the analogues with ether substituents
设计并合成了一系列新型的β-羟基异戊基紫草素类似物,这些类似物在紫草素的侧链羟基上带有含氧取代基。在体外评估了这些化合物对多药耐药(MDR)细胞DU-145和HeLa的细胞毒性。大多数化合物对两种细胞系均显示出显着的抑制活性。构效关系表明,带有醚取代基的类似物对DU-145表现出最强的抗肿瘤活性和选择性细胞毒性。在具有醚取代基的化合物中,增加带有β-羟基的碳中的空间位阻或用乙酰氧基或甲氧基代替β-羟基会导致细胞毒性下降。