Synthesis of pyridyl substituted pyrazolo[4,3-c]pyridines as potential inhibitors of protein kinases
作者:Gytė Vilkauskaitė、Patricia Schaaf、Algirdas Šačkus、Vladimir Krystof、Wolfgang Holzer
DOI:10.3998/ark.5550190.p008.188
日期:——
A synthetic route towards 3-(2-pyridyl)-6-(hetero)aryl-1H-pyrazolo[4,3-c]pyridines is described. The key step consists of a microwave-assisted multi-component reaction, including a Sonogashira type cross-coupling of appropriate 5-chloropyrazole-4-carbaldehydes with alkynyl(hetero)arenes followed by pyridine ring formation of the coupling products in the presence of tert-butylamine, directly affording
描述了 3-(2-吡啶基)-6-(杂)芳基-1H-吡唑并[4,3-c]吡啶的合成路线。关键步骤包括微波辅助的多组分反应,包括适当的 5-氯吡唑-4-甲醛与炔基(杂)芳烃的 Sonogashira 型交叉偶联,然后在叔存在下偶联产物的吡啶环形成-丁胺,直接提供标题化合物。N-1 处没有取代基的同源物通过叔丁基保护基的裂解获得。对获得的化合物进行了详细的 NMR 光谱研究 (H、C 和 N)。对选定的代表作为蛋白激酶抑制剂的潜力进行了评估。