Visible-Light-Mediated Chan-Lam Coupling Reactions of Aryl Boronic Acids and Aniline Derivatives
作者:Woo-Jin Yoo、Tatsuhiro Tsukamoto、Shū Kobayashi
DOI:10.1002/anie.201500074
日期:2015.5.26
The copper(II)‐catalyzed aerobicoxidativecoupling reaction between aryl boronic acids and aniline derivatives was found to be improved significantly under visible‐light‐mediated photoredox catalysis. The substrate scope of this oxidative Chan–Lam reaction was thus expanded to include electron‐deficient aryl boronic acids as viable starting materials.
Electrochemically Enabled Chan–Lam Couplings of Aryl Boronic Acids and Anilines
作者:Ryan P. Wexler、Philippe Nuhant、Timothy J. Senter、Zachary J. Gale-Day
DOI:10.1021/acs.orglett.9b01434
日期:2019.6.21
The Chan–Lamreaction remains a highly utilized transformation for C–N bond formation. However, anilines remain problematic substrates due to their lower nucleophilicity. To address this problem, we developed an electrochemically mediated Chan–Lamcoupling of arylboronicacids and amines utilizing a dual copper anode/cathode system. The mild conditions identified have enabled the preparation of a
characterized therapeutic utility. Herein, a series of tetrahydroisoquinoline (THIQ) derivatives were designed and synthesized as PRMT5 inhibitors using GSK-3326595 as the lead compound. Among them, compound 20 (IC50: 4.2 nM) exhibits more potent PRMT5 inhibitory activity than GSK-3326595 (IC50: 9.2 nM). In addition, compound 20 shows high anti-proliferative effects on MV-4-11 and MDA-MB-468 tumor cells and low