Application of a novel [3+2] cycloaddition reaction to prepare substituted imidazoles and their use in the design of potent DFG-out allosteric B-Raf inhibitors
作者:Justin Dietrich、Vijay Gokhale、Xiadong Wang、Laurence H. Hurley、Gary A. Flynn
DOI:10.1016/j.bmc.2009.10.055
日期:2010.1
design, we have developed novel, potent, and specific DFG-out allosteric inhibitors of B-Raf kinase. Here, we present efficient and versatile chemistry that utilizes a key one pot, [3+2] cycloaddition reaction to obtain highly substituted imidazoles and their application in the design of allosteric B-Raf inhibitors. Inhibitors based on this scaffold display subnanomolar potency and a favorable kinase
B-Raf蛋白激酶是RAS–RAF–MEK–ERK信号通路中的关键信号分子,在许多癌症中起着重要作用。B-Raf V600E突变代表已知的最常见的致癌激酶突变,并负责增加所有人类癌症中约7%的激酶活性,从而将B-Raf确立为抑制的重要治疗靶点。通过使用利用化学中心方法和合理结构设计的迭代程序,我们开发了新颖,有效和特异的B-Raf激酶变构抑制剂。在这里,我们介绍了利用关键的一锅,[3 + 2]环加成反应获得高度取代的咪唑及其在变构B-Raf抑制剂设计中的应用的有效而通用的化学方法。