Synthesis of N-substituted benzo[c][1,7]- and benzo[c][1,8] phenanthrolin-(5H)-6-ones through a Pd-mediated Suzuki–Miyaura heteroaryl-aryl coupling reaction
作者:Constance Genès、Sylvie Michel、François Tillequin、François-Hugues Porée
DOI:10.1016/j.tet.2009.09.110
日期:2009.11
In the course of the search for non-camptothecin topoisomerase I inhibitors we have undertaken the synthesis of N-substituted benzo[c][1,7]- and benzo[c][1,8]phenanthrolinone derivatives. An intermolecular Suzuki–Miyaura heteroaryl-aryl coupling reaction was planned as the key step. Then a nitro reduction followed by a concomitant lactamization achieved the construction of the tetracycle structures
在寻找非喜树碱拓扑异构酶I抑制剂的过程中,我们进行了N-取代的苯并[ c ] [1,7]-和苯并[ c ] [1,8]菲咯啉酮衍生物的合成。分子间的铃木-宫浦杂芳基-芳基偶联反应被计划为关键步骤。然后硝基还原,随后伴随内酰胺化,实现了四环结构的构建。这种方法可以快速有效地制备生物有效的化合物。