Manganese-Mediated Reductive Transamidation of Tertiary Amides with Nitroarenes
作者:Chi Wai Cheung、Jun-An Ma、Xile Hu
DOI:10.1021/jacs.8b03739
日期:2018.6.6
an important class of organic compounds, which have widespread industrial applications. Transamidation of amides is a convenient method to generate new amides from existing ones. Tertiary amides, however, are challenging substrates for transamidation. Here we describe an unconventional approach to the transamidation of tertiary amides using nitroarenes as the nitrogen source under reductive conditions
Direct amide synthesis <i>via</i> Ni-mediated aminocarbonylation of arylboronic acids with CO and nitroarenes
作者:Ni Shen、Chi Wai Cheung、Jun-An Ma
DOI:10.1039/c9cc06638a
日期:——
Herein we describe an alternative and unconventional approach of an aminocarbonylation reaction to access aryl amides from readily available and low-cost arylboronic acids and nitroarenes. Nickel metal can serve as both reductant and catalyst in this direct aminocarbonylation. This protocol exhibits a good functional group compatibility and allows a variety of aryl amides to be synthesized, including
Direct Amidation of Carboxylic Acids with Nitroarenes
作者:Shao-Peng Wang、Chi Wai Cheung、Jun-An Ma
DOI:10.1021/acs.joc.9b02068
日期:2019.11.1
N-Aryl amides are an important class of compounds in pharmaceutical and agrochemical chemistry. Rapid and low-cost synthesis of N-aryl amides remains in high demand. Herein, we disclose an operationally simple process to access N-aryl amides directly from readily available nitroarenes and carboxylicacids as coupling substrates. This method involves the in situ activation of carboxylicacids to acyloxyphosphonium
[EN] PROBES FOR IMAGING HUNTINGTIN PROTEIN<br/>[FR] SONDES D'IMAGERIE DE LA PROTÉINE HUNTINGTINE
申请人:CHDI FOUNDATION INC
公开号:WO2016033445A1
公开(公告)日:2016-03-03
Provided are imaging agents comprising a compound of Formula (I), or a pharmaceutically acceptable salt thereof, and methods of their use.
提供了包含化合物I式或其药用可接受盐的成像试剂,以及它们的使用方法。
Urea Derivatives of 2-Aryl-benzothiazol-5-amines: A New Class of Potential Drugs for Human African Trypanosomiasis
作者:Donald A. Patrick、J. Robert Gillespie、Joshua McQueen、Matthew A. Hulverson、Ranae M. Ranade、Sharon A. Creason、Zackary M. Herbst、Michael H. Gelb、Frederick S. Buckner、Richard R. Tidwell
DOI:10.1021/acs.jmedchem.6b01163
日期:2017.2.9
promising compounds were the urea derivatives of 2-aryl-benzothiazol-5-amines. One such analogue, (S)-2-(3,4-difluorophenyl)-5-(3-fluoro-N-pyrrolidylamido)benzothiazole (57) was chosen for in vivo efficacy studies based upon in vitro activity, metabolic stability, and brain penetration. This compound attained 5/5 cures in murine models of both early and late stage human Africantrypanosomiasis, representing