Design, Synthesis, and Biological Evaluation of Cytotoxic 11-Alkenylindenoisoquinoline Topoisomerase I Inhibitors and Indenoisoquinoline−Camptothecin Hybrids
作者:Brian M. Fox、Xiangshu Xiao、Smitha Antony、Glenda Kohlhagen、Yves Pommier、Bart L. Staker、Lance Stewart、Mark Cushman
DOI:10.1021/jm0300476
日期:2003.7.1
development as potential anticancer agents. As inhibitors of the DNA religation reaction occurring after DNA cleavage by the enzyme, they are classified as top1 poisons, similar to the camptothecins. Two strategies were employed in order to further develop the structure-activity relationships of the indenoisoquinolines and enhance their therapeutic potential. The first strategy involved the synthesis of in
茚并异喹啉类是一类新的拓扑异构酶I(top1)抑制剂,在癌细胞培养中具有细胞毒性,因此正在作为潜在的抗癌药进行开发。作为通过酶切割DNA后发生的DNA连接反应的抑制剂,与喜树碱相似,它们被分类为top1毒物。为了进一步发展茚并异喹啉的构效关系并增强其治疗潜力,采用了两种策略。第一个策略涉及茚并异喹啉-喜树碱杂合分子的合成,以利用茚并异喹啉和喜树碱之间的拟议结构相似性。所需的杂化物是通过卤代邻苯二甲酸酯与二氢吡咯并喹啉反应合成的。第二种策略涉及将各种烯基取代基连接到茚并异喹啉的C-11位置,假定这些取代基伸入DNA小沟中。通过11-酮腺苷异喹啉与醛的McMurry反应合成所需的C-11-取代的腺苷异喹啉,并通过核Overhauser效应差NMR光谱法确定所得烯烃的几何形状。检查了所有新的茚并异喹啉在人类癌细胞培养物中的细胞毒性以及与top1的活性。尽管茚并异喹啉-喜树碱杂合分子被证明对细胞毒