A Facile Method To Transform <i>trans</i>-4-Carboxy-3,4-dihydro-3-phenyl- 1(<i>2H</i>)-isoquinolones to Indeno[1,2-<i>c</i>]isoquinolines
作者:Xiangshu Xiao、Mark Cushman
DOI:10.1021/jo050831t
日期:2005.8.1
of topoisomerase I inhibitors with anticancer activity. The condensation of Schiff bases with homophthalic anhydrides provides a mixture of cis- and trans-4-carboxy-3,4-dihydro-3-phenyl-1(2H)isoquinolones. Although the cis products can be readily converted to indeno[1,2-c]isoquinolines with thionyl chloride, the trans products do not afford indeno[1,2-c]isoquinolines using this method. The present report
茚并[1,2- c ]异喹啉是一类重要的具有抗癌活性的拓扑异构酶I抑制剂。Schiff碱与高邻苯二甲酸酐的缩合提供了顺式和反式-4-羧基-3,4-二氢-3-苯基-1(2 H)异喹诺酮的混合物。尽管顺式产物可以很容易地与亚硫酰氯转化为茚并[1,2- c ]异喹啉,但是使用这种方法,反式产物不能提供茚并[1,2- c ]异喹啉。本报告介绍了使用亚硒酸酯消除和Friedel-Crafts环化化学方法将反式非对映异构体转化为茚并[1,2- c ]异喹啉的途径。