Synthesis of 4,5-disubstituted benzo[<i>c</i>][2,7]naphthyridines as precursors of pyrido[2,3,4-<i>kl</i>]acridones and related natural products
作者:F. Guillier、F. Nivoliers、A. Godard、F. Marsais、G. Quéguiner
DOI:10.1002/jhet.5570360508
日期:1999.9
methodical investigation on functionalization by carbonylated groups in position 4 and 5 of the benzo[c][2,7]naphthyridine skeleton has been undertaken. In particular the study has shown the complex influence of these two sites on each other. A careful choice of both substituents in 4 and 5 permitted the synthesis of an interesting pyrido[2,3,4-kl]acridone tetracyclic structure through an intramolecular
对苯并[ c ] [2,7]萘啶骨架的4和5位羰基化官能团进行了系统的研究。尤其是,研究表明这两个站点相互之间具有复杂的影响。仔细选择4和5中的两个取代基可以通过分子内Mukayama醛醇缩合反应合成有趣的吡啶并[2,3,4- kl ] ac啶酮四环结构。该结构被认为是吡啶ido啶家族的各种海洋生物碱的潜在前体。