Transition-metal-free C–N and C–C formation: synthesis of benzo[4,5]imidazo[1,2-<i>a</i>]pyridines and 2-pyridones from ynones
作者:Qing-Hu Teng、Xiang-Jun Peng、Zu-Yu Mo、Yan-Li Xu、Hai-Tao Tang、Heng-Shan Wang、Hong-Bin Sun、Ying-Ming Pan
DOI:10.1039/c8gc00069g
日期:——
been revealed. This cascade reaction involved a Michael addition/intramolecular cycloaddition/dehydration and provided the desired benzo[4,5]imidazo[1,2-a]pyridines in moderate to good yield. Furthermore, three benzo[4,5]imidazo[1,2-a]pyridines (3d, 3i, and 3q) exhibited good activities against Hep-G2 (human liver cancer), T-24 (human bladder cancer cell), and SK-OV-3 (human ovarian cancer) cell lines
在此,已经揭示了在温和条件下炔烃与2-甲基苯并咪唑的无过渡金属的有效级联反应。该级联反应涉及迈克尔加成/分子内环加成/脱水,并以中等至良好的产率提供了所需的苯并[4,5]咪唑并[1,2- a ]吡啶。此外,三种苯并[4,5]咪唑并[1,2- a ]吡啶(3d,3i和3q)对Hep-G2(人类肝癌),T-24(人类膀胱癌细胞)和SK-OV-3(人类卵巢癌)细胞系,IC 50值在8.05–10.67μmolL -1范围内。为了研究有效抑制细胞生长的机制,对细胞周期分析,凋亡率检测,Ca 2+生成的测量,ROS,线粒体膜电位测定和caspase-3 / 9活化进行了进一步的研究。化合物3i。