Decarboxylative cross-nucleophile coupling via ligand-to-metal charge transfer photoexcitation of Cu(ii) carboxylates
作者:Qi Yukki Li、Samuel N. Gockel、Grace A. Lutovsky、Kimberly S. DeGlopper、Neil J. Baldwin、Mark W. Bundesmann、Joseph W. Tucker、Scott W. Bagley、Tehshik P. Yoon
DOI:10.1038/s41557-021-00834-8
日期:2022.1
nucleophiles under visible-light irradiation. Preliminary mechanistic studies suggest that the relevant chromophore in this reaction is a Cu(ii) carboxylate species assembled in situ. We propose that visible-light excitation to a ligand-to-metal chargetransfer (LMCT) state results in a radical decarboxylation process that initiates the oxidative cross-coupling. The reaction is applicable to a wide
能够形成碳-氮、碳-氧和碳-碳键的反应是合成化学的核心。然而,通常需要底物预功能化来实现此类转化,而无需强制反应条件。因此,开发丰富的原料化学品的直接偶联方法对于快速构建复杂的分子支架是非常必要的。在这里,我们报道了在可见光照射下羧酸与多种亲核试剂的铜介导的净氧化脱羧偶联。初步机理研究表明,该反应中的相关生色团是原位组装的 Cu( ii ) 羧酸盐物种。我们提出,可见光激发配体到金属的电荷转移(LMCT)状态会导致自由基脱羧过程,从而引发氧化交叉偶联。该反应适用于多种偶联伙伴,包括复杂的药物分子,表明这种交叉亲核偶联策略将促进快速化合物库合成,以发现新的药物制剂。
[EN] INHIBITORS OF CYTOMEGALOVIRUS<br/>[FR] INHIBITEURS DE CYTOMÉGALOVIRUS
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2014070978A1
公开(公告)日:2014-05-08
Compounds of Formula (I) wherein n, R1, R1A, R2, R3, Y and Z are defined herein, are useful for the treatment of cytomegalovirus disease and/or infection.
N-(5-Chloro-2,4-dihydroxyphenyl)-1-phenylcyclobutanecarboxamide (N-CDPCB, 1a) is found to be an inhibitor of the fat mass and obesity associated protein (FTO). The crystal structure of human FTO with la reveals a novel binding site for the FTO inhibitor and defines the molecular basis for recognition by FTO of the inhibitor. The identification of the new binding site offers new opportunities for further development of selective and potent inhibitors of FTO, which is expected to provide information concerning novel therapeutic targets for treatment of obesity or obesity-associated diseases.