Design, synthesis, and biological evaluation of novel 7-azaindolyl-heteroaryl-maleimides as potent and selective glycogen synthase kinase-3β (GSK-3β) inhibitors
作者:David J. O'Neill、Lan Shen、Catherine Prouty、Bruce R. Conway、Lori Westover、Jun Z. Xu、Han-Cheng Zhang、Bruce E. Maryanoff、William V. Murray、Keith T. Demarest、Gee-Hong Kuo
DOI:10.1016/j.bmc.2004.04.010
日期:2004.6
Two approaches were developed to synthesize the novel 7-azaindolyl-heteroarylmaleimides. The first approach was based upon the palladium-catalyzed Suzuki cross-coupling or Stille cross-coupling of 2-chloro-maleimide 5 with various arylboronic acids or arylstannanes. The second approach was based upon the condensation of ethyl 7-azaindolyl-3-glyoxylate 12 with various acetamides. The hydroxypropyl-substituted
开发了两种方法来合成新型的7-氮杂吲哚基-杂芳基马来酰亚胺。第一种方法基于2-氯马来酰亚胺5与各种芳基硼酸或芳基锡烷的钯催化的Suzuki交叉偶联或Stille交叉偶联。第二种方法基于7-氮杂吲哚基-3-乙醛酸乙酯12与各种乙酰胺的缩合。首先使用羟丙基取代的7-氮杂吲哚基马来酰亚胺模板来筛选与马来酰亚胺连接的不同杂芳基。接下来研究具有不同链长和不同官能团的羟丙基的取代。已证明许多合成的化合物对GSK-3beta具有高效力,在HEK293细胞中具有良好的GS活性,并且在人肝微粒体中具有良好的代谢稳定性。三种代表性化合物(21、33,和34)被证明对一组80种激酶测定具有良好的选择性。其中,化合物33在其他79种激酶测定中显示出非常弱的抑制作用,并表现为高度选择性的GSK-3beta抑制剂。