Identification, Design and Biological Evaluation of Bisaryl Quinolones Targeting <i>Plasmodium falciparum</i> Type II NADH:Quinone Oxidoreductase (PfNDH2)
作者:Chandrakala Pidathala、Richard Amewu、Bénédicte Pacorel、Gemma L. Nixon、Peter Gibbons、W. David Hong、Suet C. Leung、Neil G. Berry、Raman Sharma、Paul A. Stocks、Abhishek Srivastava、Alison E. Shone、Sitthivut Charoensutthivarakul、Lee Taylor、Olivier Berger、Alison Mbekeani、Alasdair Hill、Nicholas E. Fisher、Ashley J. Warman、Giancarlo A. Biagini、Stephen A. Ward、Paul M. O’Neill
DOI:10.1021/jm201179h
日期:2012.3.8
the selection of 2-bisaryl 3-methyl quinolones as a series for further biological evaluation. The lead compound within this series 7-chloro-3-methyl-2-(4-(4-(trifluoromethoxy)benzyl)phenyl)quinolin-4(1H)-one (CK-2-68) has antimalarialactivity against the 3D7 strain of P. falciparum of 36 nM, is selective for PfNDH2 over other respiratory enzymes (inhibitory IC50 against PfNDH2 of 16 nM), and demonstrates
Herein, we describe acridine-based SNS-Ru pincer-catalysed unprecedented dehydrogenative annulation of alcohols with 2′-aminoacetophenone to synthesize 2,3-disubstituted-4-quinolones.
Gold-catalyzed cyclization of 1-(2′-azidoaryl) propynols: synthesis of polysubstituted 4-quinolones
作者:Xiang Wu、Lang-Lang Zheng、Li-Ping Zhao、Cheng-Feng Zhu、You-Gui Li
DOI:10.1039/c9cc06652g
日期:——
An unprecedented gold-catalyzed procedure for the synthesis of polysubstituted 4-quinolones from 1-(2'-azidoaryl) propynols is described. The reaction undergoes an intramolecular nucleophilic attack of the azide group to the Au-activated triple bonds in a 6-endo-dig manner and subsequent gold-assisted expulsion of N2 to furnish an α-imino gold carbene intermediate, which triggers a 1,2-carbon migration