作者:A. Paul Krapcho、Cynthia E. Gallagher、Abdelhakim Hammach、Miles P. Hacker、Ernesto Menta、Ambrogio Oliva、Roberto Di Domenico、Giovanni Da Re、Andrea Lotto、Silvano Spinelli
DOI:10.1002/jhet.5570350419
日期:1998.7
displacements by substituted hydrazines and amines, respectively, to lead to the desired p-methoxybenzyl protected analogues 12 and 22. Deprotection led to the side arm modified compounds 1 and 2. The displacements of 21a and 21b with N,N-dimethylethylenediamine also led to the tri[(aminoalkyl)amino]substituted analogues 23a and 23b, respectively, which arose from further SNAr substitutions of the p-methoxybenzyloxy
已开发出导致抗肿瘤蒽吡唑的环羟基化氮杂类似物的合成路线,即2,5-双[(氨基烷基)氨基]取代的10-羟基mdazolo [3,4- fg ]异喹啉-6(2 H)-一个1和7-hydroxyindazolo [4,3- gh ] isoquinolin-6(2 H)-ones 2。已经完成了6,9-二卤代-4-羟基苯并[ g ]异喹啉3和4的区域特异性合成。中间体3是通过多步过程构建的,涉及苯甲酰基丙烯酸酯的Diels-Alder化学,而中间体4是使用Ni(II)介导的3-氯-5-甲氧基异烟酸甲酯(15b)中含有衍生自2-氟-5-氯苄基溴的有机锌试剂18(17)。在用对甲氧基苄基部分保护羟基后,在10和20中存在的离去基团的不同核官能度分别允许被取代的肼和胺顺序置换,从而得到所需的对甲氧基苄基保护的类似物12和22。脱保护导致侧臂改性的化合物1和2。的位移部21a和21b中与N,N--二甲基