Design, synthesis, and biological evaluation of pyrazole derivatives containing acetamide bond as potential BRAF V600E inhibitors
作者:Chen-Ru Wang、Ze-Feng Wang、Lu Shi、Zhong-Chang Wang、Hai-Liang Zhu
DOI:10.1016/j.bmcl.2018.06.028
日期:2018.8
inhibitors, it’s significant to design the more effective and novel drugs. In this study, a series of novel pyrazole derivatives containing acetamide bond had been designed and synthesized on the basis of analysis of the endogenous ligands extracted from the known B-Raf co-crystals in the PDB database. Then, the compounds were evaluated for biological activities as potential BRAFV600E inhibitors. The bioassay
随着已知市售的BRAF V600E抑制剂的耐药性,复发和副作用日益增加,设计更有效和新颖的药物具有重要意义。在这项研究中,在分析从PDB数据库中已知B-Raf共晶体中提取的内源性配体的基础上,设计并合成了一系列含有乙酰胺键的新型吡唑衍生物。然后,评估化合物作为潜在BRAF V600E抑制剂的生物活性。针对三种人类肿瘤细胞系的体外生物测定结果表明,某些化合物显示出非常出色的抗增殖特性。其中,具有IC 50的化合物5r与BRAF V600E的阳性对照药物vemurafenib相比,针对BRAF V600E的0.10±0.01μM和针对A375细胞系的0.96±0.10μM的值显示出最有效的抑制作用( BRAF V600E的IC 50 = 0.04± 0.004μM,IC 50 = 1.05相对于A375为±0.10μM)。进一步的研究证实,化合物5r可以诱导A375细胞凋亡,通过改变线粒体膜