Synthesis of C8-Aminated Pyrrolo-Phenanthridines or -Indoles via Series C(sp<sup>2</sup> or sp<sup>3</sup>)–H Activation and Fluorescence Study
作者:Bo-Sheng Zhang、Wan-Yuan Jia、Xue-Ya Gou、Ying-Hui Yang、Fan Wang、Yi-Ming Wang、Xi-Cun Wang、Zheng-Jun Quan
DOI:10.1021/acs.orglett.2c00318
日期:2022.3.25
This report developed a method for the synthesis of C8-aminated pyrrolo-phenanthridines or -indoles by series ortho C(sp2)–H amination/ipso C(sp2)–H or C(sp3)–H arylation. N-benzoyloxyamines, as electrophilic amination reagents, did not undergo an electrophilic substitution reaction with the pyrrole side, but they did undergo a site-selective C–H amination reaction with the benzene side via Pd/NBE catalysis
A set of nine new arylpyrrolyl derivatives of 7-chloro-4-aminoquinoline, characterized by different substituents on the phenyl ring or different distance between the pyrrolic nitrogen and the 4-aminoquinoline, has been synthesized and tested for their activity against D-10 (CQ-S) and W-2 (CQ-R) strains of Plasmodium falciparum. All compounds exhibited activity against the CQ-S strain in the low nM range, comparable to that of chloroquine. Some of them were also highly active against the CQ-R strain and not toxic against normal cells. The antimalarial activity of this new class of compounds seems to be related to the inhibition of heme detoxification process of parasites, as in the case of chloroquine. (c) 2010 Elsevier Ltd. All rights reserved.