Ruthenium-Catalyzed <i>para</i>
-Selective C−H Alkylation of Aniline Derivatives
作者:Jamie A. Leitch、Claire L. McMullin、Andrew J. Paterson、Mary F. Mahon、Yunas Bhonoah、Christopher G. Frost
DOI:10.1002/anie.201708961
日期:2017.11.20
The para‐selectiveC−H alkylation of aniline derivatives furnished with a pyrimidine auxiliary is herein reported. This reaction is proposed to take place via an N−H‐activated cyclometalate formed in situ. Experimental and DFT mechanistic studies elucidate a dual role of the ruthenium catalyst. Here the ruthenium catalyst can undergo cyclometalation by N−H metalation (as opposed to C−H metalation in
The reaction of 2,4,6-trichloropyrimidine 1 with a variety of 4-substituted anilines 2 has been investigated. Monosubstitution occurs readily for all anilines except those containing strongly electron-withdrawing groups. The yields of the isomeric products 3 and 4 parallel the Hammet constants of the ring substituents. The main product when ethanol was used as the solvent was the 4-substituted-2,6-dichloropyrimidine
Antibacterial 3,5-diaminopiperidine-substituted aromatic and heteroaromatic compounds
申请人:Zhou Yuefen
公开号:US20070197533A1
公开(公告)日:2007-08-23
The invention relates to antibacterial 3,5-diaminopiperidine-substituted aromatic and heteroaromatic compounds and pharmaceutical compositions thereof. This invention also relates to a method of using such compounds in the treatment of bacterial infections in mammals, especially humans.
Synthesis and biological evaluation of novel pyrimidine derivatives as sub-micromolar affinity ligands of GalR2
作者:Vasudeva Naidu Sagi、Tianyu Liu、Xiaoying Lu、Tamas Bartfai、Edward Roberts
DOI:10.1016/j.bmcl.2011.09.033
日期:2011.12
GalR1 and GalR2 represent unique pharmacological targets for treatment of seizures and epilepsy. A novel series of 2,4,6-triaminopyrimidine derivatives were synthesized and found to have sub-micromolar affinity for GalR2. Optimization of a series of 2,4,6-triaminopyrimidines led to the discovery of several analogs with IC50 values ranging from 0.3 to 1 mu M. (C) 2011 Elsevier Ltd. All rights reserved.
Bratt, Jack; Iddon, Brian; Mack, Arthur G., Journal of the Chemical Society. Perkin transactions I, 1980, p. 648 - 656
作者:Bratt, Jack、Iddon, Brian、Mack, Arthur G.、Suschitzky, Hans、Taylor, Jack A.、Wakefield, Basil J.