Discovery of 4,6-substituted-(diaphenylamino)quinazolines as potent c-Src inhibitors
作者:Jing-Ran Li、Dong-Dong Li、Fei Fang、Qian-Ru Du、Lin Lin、Jian Sun、Yong Qian、Hai-Liang Zhu
DOI:10.1039/c3ob41161c
日期:——
A series of 4,6-substituted-(diaphenylamino)quinazolines as c-Src inhibitors have been prepared and their biological activity has also been evaluated. All the compounds displayed potential antiproliferation activities, with IC50 values ranging from 3.42 μM to 118.81 μM in five human tumor cell lines. Particularly, compound 15 exhibited higher cytotoxicity against the tested five tumor cell lines compared to the other small molecules. Generally, most of these compounds showed selectivity between the A549 cells and the other four cells, according to their corresponding IC50 values. The results obtained from the in vitro enzyme assay indicated compound 15 has remarkable inhibitory activity against c-Src kinase with an IC50 value of 27.3 nM, which is comparable to the control compounds. Furthermore, molecular docking and QSAR study by means of DS 3.5 (Discovery Studio 3.5, Accelrys, Co. Ltd) explored the binding modes and the structure and activity relationship (SAR) of these derivatives.
一系列4,6-取代的(二苯胺基)喹唑啉作为c-Src抑制剂已被制备,并且它们的生物活性也得到了评估。所有化合物都显示出潜在的抗增殖活性,在五种人肿瘤细胞系中的IC50值范围从3.42 μM到118.81 μM。特别是化合物15对测试的五种肿瘤细胞系表现出比其他小分子更高的细胞毒性。通常,根据它们相应的IC50值,这些化合物中的大多数在A549细胞和其他四种细胞之间显示出选择性。从体外酶 assay 获得的结果表明,化合物15对c-Src激酶具有显著的抑制活性,IC50值为27.3 nM,可与对照化合物相媲美。此外,通过DS 3.5 (Discovery Studio 3.5, Accelrys, Co. Ltd)进行的分子对接和QSAR研究探索了这些衍生物的结合模式和结构与活性关系(SAR)。