Efficient and Selective Palladium-Catalysed C-3 Urea Couplings to 3,5-Dichloro-2(1<i>H</i>)-pyrazinones
作者:Anna Karin Belfrage、Johan Gising、Fredrik Svensson、Eva Åkerblom、Christian Sköld、Anja Sandström
DOI:10.1002/ejoc.201403405
日期:2015.2
variants showed retained inhibitory potency as compared to the wild-type enzyme. Initial evaluation against genotype 3a displayed micro-molar potencies. Lead optimization, with respect to improved PK properties, were also performed on an advanced class of HCV NS3 protease inhibitors, containing a P2 quinazoline substituent in combination with a macro-cyclic proline urea scaffold with nano-molar cell based
作者:Timothy R. Ward、Brandon J. Turunen、Torsten Haack、Benjamin Neuenswander、William Shadrick、Gunda I. Georg
DOI:10.1016/j.tetlet.2009.09.024
日期:2009.11
A library of 72 quinolones was synthesized from substituted anthranilic acids, using ynone intermediates. These masked beta-dicarbonyl synthons allowed cyclization under milder conditions than previously reported quinolone syntheses. (C) 2009 Elsevier Ltd. All rights reserved
Discovery of pyrazinone based compounds that potently inhibit the drug-resistant enzyme variant R155K of the hepatitis C virus NS3 protease
作者:Anna Karin Belfrage、Eldar Abdurakhmanov、Eva Åkerblom、Peter Brandt、Anna Oshalim、Johan Gising、Anna Skogh、Johan Neyts、U. Helena Danielson、Anja Sandström
DOI:10.1016/j.bmc.2016.03.066
日期:2016.6
this series showed nanomolar potency against R155K NS3 protease; which generally confer resistance to all HCV NS3 proteaseinhibitors approved or in clinical trials. These results further strengthen the potential of this novel substance class, being very different to the approved drugs and clinical candidates, in the development of inhibitors less sensitive to drug resistance.