Synthesis and biological evaluation of benzo[4,5]imidazo[1,2-c]pyrimidine and benzo[4,5]imidazo[1,2-a]pyrazine derivatives as anaplastic lymphoma kinase inhibitors
作者:Sébastien Tardy、Alexandre Orsato、Luca Mologni、William H. Bisson、Carla Donadoni、Carlo Gambacorti-Passerini、Leonardo Scapozza、David Gueyrard、Peter G. Goekjian
DOI:10.1016/j.bmc.2014.01.007
日期:2014.2
target. We synthesized a series of functionalized benzo[4,5]imidazo[1,2-c]pyrimidines and benzo[4,5]imidazo[1,2-a]pyrazines by an aza-Graebe–Ullman reaction, followed by palladium-catalyzed cross-coupling reactions. A sequential regioselective cross-coupling route is reported for the synthesis of unsymmetrically disubstituted benzo[4,5]imidazo[1,2-a]pyrazines. The inhibition of ALK was evaluated and compound
涉及间变性淋巴瘤激酶(ALK)的染色体易位是多种癌症的驱动突变,因此ALK被认为是有吸引力的治疗靶标。我们通过aza-Graebe-Ullman反应合成了一系列功能化的苯并[4,5]咪唑并[1,2- c ]嘧啶和苯并[4,5]咪唑并[1,2- a ]吡嗪,然后钯-催化的交叉偶联反应。报道了用于不对称二取代的苯并[4,5]咪唑并[1,2- a ]吡嗪的顺序区域选择性交叉偶联途径。评价了ALK的抑制作用,特别是化合物19在体外以及在ALK转染的BaF3细胞中对野生型和耐克唑替尼的L1196M突变体均表现出良好的活性。