Construction of Benzo[<i>c</i>]carbazoles and Their Antitumor Derivatives through the Diels–Alder Reaction of 2-Alkenylindoles and Arynes
作者:Feng Sha、Yuan Tao、Chen-Yu Tang、Fei Zhang、Xin-Yan Wu
DOI:10.1021/acs.joc.5b01223
日期:2015.8.21
assembly of benzo[c]carbazole derivatives via the Diels–Alder reaction of arynes and easily accessible 2-alkenylidoles was reported. By employing different aryne precursor loads, 6,7-dihydrobenzo[c]carbazoles or aryl-substituted 7,11b-dihydrobenzo[c]carbazoles could be controllably generated in good to excellent yields under a nitrogen atmosphere. On the other hand, when the reaction was conducted under
据报道,苯并[ c ]咔唑衍生物可通过芳烃和易于接近的2-烯基基团的狄尔斯-阿尔德反应直接组装。通过使用不同的芳烃前体负载量,可以在氮气氛下以良好至优异的产率可控制地生成6,7-二氢苯并[ c ]咔唑或芳基取代的7,11b-二氢苯并[ c ]咔唑。另一方面,当反应在氧气下进行时,可以一步一步地以高选择性和高效率直接生成氧化/芳构化产物苯并[ c ]咔唑。有趣的是,苯并[ c上述产物的]咔唑-5-羧酰胺酰胺化衍生物显示出良好的抗肿瘤活性。还描述了这些分子对癌细胞的抑制作用。