Straightforward synthesis and biological evaluation as topoisomerase I inhibitors and antiproliferative agents of hybrid Chromeno[4,3-b][1,5]Naphthyridines and Chromeno[4,3-b][1,5]Naphthyridin-6-ones
作者:Endika Martín-Encinas、Gloria Rubiales、Birgitta R. Knudssen、Francisco Palacios、Concepción Alonso
DOI:10.1016/j.ejmech.2019.06.032
日期:2019.9
and reliable synthesis. The subsequent dehydrogenation of the fused tetrahydrochromeno[4,3-b][1,5]naphthyridines and/or tetrahydrochromeno[4,3-b][1,5]naphthyridin-6-ones leads to the formation of the corresponding tetracyclic chromeno[4,3-b][1,5]naphthyridine derivatives and/or chromeno[4,3-b][1,5]naphthyridin-6-ones in quantitative yields. Some of the prepared products showed activity as inhibitors
这项工作描述了杂合四氢-1,5-萘啶和1,5-萘啶衍生物与杂环(如色烯和色烯-2-酮或香豆素)的合成方法,这些合成方法的收率很高,总收率很高。合成途径涉及功能化醛胺的分子内[4 + 2]环加成反应,该醛基是通过3-氨基吡啶与在邻位含有双或三碳键的醛缩合而获得的,并允许在一个位置选择性生成三个立体中心。简短,高效且可靠的合成。稠合的四氢苯并吡喃并[4,3-的随后脱氢b ] [1,5]萘啶和/或四氢苯并吡喃并[4,3- b] [1,5]萘啶-6-酮导致形成相应的四环chromeno [4,3- b ] [1,5]萘啶衍生物和/或chromeno [4,3- b ] [1,5]萘啶-6-酮的定量收率。一些制备的产物显示出作为拓扑异构酶I(TopI)的抑制剂的活性。此外,已经在源自人肺腺癌(A549)和人卵巢癌(SKOV03)的细胞系以及非癌性肺成纤维细胞系(MRC5)中研究了这些化合物的细胞毒行为。观察到没有细胞毒性。7-苯基-6