Design, synthesis, and evaluation of novel small molecule inhibitors of the influenza virus protein NS1
摘要:
Influenza is a continuing world-wide public health problem that causes significant morbidity and mortality during seasonal epidemics and sporadic pandemics. The existing vaccination program is variably effective from year to year, and drug resistance to available antivirals is a growing problem, making the development of additional antivirals an important challenge. Influenza virus non-structural protein 1 (NS1) is the centerpiece of the viral response to the host interferon (IFN) system. NS1 was demonstrated previously to be a potential therapeutic target for antiviral therapy by the identification of specific small-molecule inhibitors. One inhibitory compound, NSC125044, was subjected to chemical evaluation. Initial synthetic work comprised simplifying the core structure by removing unwanted functionality and determination of key features important for activity. Several subclasses of molecules were designed and synthesized to further probe activity and develop the basis for a structure-activity relationship. Apparent potency, as judged by activity in virus replication assays, increased dramatically for some analogs, without cytotoxicity. Results suggest that the target binding site tolerates hydrophobic bulk as well as having a preference for weakly basic substituents. (C) 2011 Elsevier Ltd. All rights reserved.
FeCl<sub>3</sub>-catalyzed oxidative amidation of benzylic C–H bonds enabled by a photogenerated chlorine-radical
作者:Yingying Yang、Xianglin Yu、Na He、Xinxiang Huang、Xizhong Song、Jingbo Chen、Jun Lin、Yi Jin
DOI:10.1039/d3cc03186a
日期:——
broad substrate scope (60 examples) and offer operationally simple, scalable procedures for accessing valuable products from methylarenes in a single step. Mechanisticstudies and control experiments confirm the participation of a photogenerated chlorine radical in facilitating the hydrogen atom transfer (HAT) from the benzylic C–H bond to initiate the reaction.
2-ACYLAMINOBENZAMIDE DERIVATIVES AND PREVENTIVE AND REMEDY FOR DISEASES CAUSED BY THE SUPERMULTIPLICATION OF VASCULAR INTIMAL CELLS
申请人:KISSEI PHARMACEUTICAL CO., LTD.
公开号:EP0855387A1
公开(公告)日:1998-07-29
The present invention relates to 2-acylaminobenzamide derivatives represented by the general formula:
wherein R1, R2, R3, R4 and R5 represent each a hydrogen atom etc.; X represents a vinylene group etc.; B represents a group represented by the general formula:
-N(R6)(R7)
wherein R6 and R7 represent each a hydrogen atom etc., a group represented by the general formula:
-NH-(CH2)n-A-R8
wherein A represents a single bond etc.; R8 represents a hydroxy group etc. or a hydroxyamino group which are useful as agents for the prevention and treatment of diseases caused by excessive proliferation of vascular intimal cells.
Design, synthesis, and evaluation of novel small molecule inhibitors of the influenza virus protein NS1
作者:Joseph J. Jablonski、Dipwanita Basu、Daniel A. Engel、H. Mario Geysen
DOI:10.1016/j.bmc.2011.10.026
日期:2012.1
Influenza is a continuing world-wide public health problem that causes significant morbidity and mortality during seasonal epidemics and sporadic pandemics. The existing vaccination program is variably effective from year to year, and drug resistance to available antivirals is a growing problem, making the development of additional antivirals an important challenge. Influenza virus non-structural protein 1 (NS1) is the centerpiece of the viral response to the host interferon (IFN) system. NS1 was demonstrated previously to be a potential therapeutic target for antiviral therapy by the identification of specific small-molecule inhibitors. One inhibitory compound, NSC125044, was subjected to chemical evaluation. Initial synthetic work comprised simplifying the core structure by removing unwanted functionality and determination of key features important for activity. Several subclasses of molecules were designed and synthesized to further probe activity and develop the basis for a structure-activity relationship. Apparent potency, as judged by activity in virus replication assays, increased dramatically for some analogs, without cytotoxicity. Results suggest that the target binding site tolerates hydrophobic bulk as well as having a preference for weakly basic substituents. (C) 2011 Elsevier Ltd. All rights reserved.