Copper(I)-Catalyzed Nitrile-Addition/<i>N</i>-Arylation Ring-Closure Cascade: Synthesis of 5,11-Dihydro-6<i>H</i>-indolo[3,2-<i>c</i>]quinolin-6-ones as Potent Topoisomerase-I Inhibitors
作者:Wen-Yun Hsueh、Ying-Shuan E. Lee、Min-Sian Huang、Chin-Hung Lai、Yu-Sheng Gao、Jo-Chu Lin、Yu-Fen Chen、Chih-Lin Chang、Shan-Yen Chou、Shyh-Fong Chen、Yann-Yu Lu、Lien-Hsiang Chang、Shu Fu Lin、Yu-Hsiang Lin、Pi-Chen Hsu、Win-Yin Wei、Ya-Chi Huang、Yi-Feng Kao、Li-Wei Teng、Hung-Huang Liu、Ying-Chou Chen、Ta-Tung Yuan、Ya-Wen Chan、Po-Hsun Huang、Yu-Ting Chao、Shin-Yi Huang、Bo-Han Jian、Hsin-Yi Huang、Sheng-Chuan Yang、Tzu-Hao Lo、Guan-Ru Huang、Shao-Yun Wang、Her-Sheng Lin、Shih-Hsien Chuang、Jiann-Jyh Huang
DOI:10.1021/acs.jmedchem.0c00727
日期:2021.2.11
present a copper(I)-catalyzed nitrile-addition/N-arylation ring-closure cascade for the synthesis of 5,11-dihydro-6H-indolo[3,2-c]quinolin-6-ones from 2-(2-bromophenyl)-N-(2-cyanophenyl)acetamides. Using CuBr and t-BuONa in dimethylformamide (DMF) as the optimal reaction conditions, the cascade reaction gave the target products, in high yields, with a good substrate scope. Application of the cascade reaction
在本文中,我们提出了一种铜(I)催化的腈加成/ N-芳基化闭环级联反应,用于合成5,11-二氢-6 H-吲哚并[3,2 - c ]喹啉-6-酮。由2-(2-溴苯基)-N-(2-氰基苯基)乙酰胺。使用二甲基甲酰胺(DMF)中的CuBr和t- BuONa作为最佳反应条件,级联反应可高收率得到目标产物,并具有良好的底物范围。级联反应的应用已证明在生物碱异隐油菜素的简明总合成中。级联反应产物的进一步优化导致3-氯-5,12-双[2-(二甲基氨基)乙基] -5,12-二氢-6 H- [1,3]二氧杂环戊[4',5' :5,6] indolo [3,2- c] quinolin-6-one(2k),表现出特征性的DNA拓扑异构酶-I抑制作用机制,并具有强大的体外抗癌活性。化合物2k主动抑制ARC-111和SN-38耐药的HCT-116细胞,并在携带人HCT-116和SJCRH30异种移植物的小鼠中显示