Pyridobenzothiazole derivatives as new chemotype targeting the HCV NS5B polymerase
摘要:
Hepatitis C virus (HCV) infection has been recognized as the major cause of liver failure that can lead to hepatocellular carcinoma. Among all the HCV proteins, NS5B polymerase represents a leading target for drug discovery strategies. Herein, we describe our initial research efforts towards the identification of new chemotypes as allosteric NS5B inhibitors. In particular, the design, synthesis, in vitro anti-NS5B and in cellulo anti-HCV evaluation of a series of 1-oxo-1H-pyrido[2,1-b][1,3]benzothiazole-4-carboxylate derivatives are reported. Some of the newly synthesized compounds showed an IC50 ranging from 11 to 23 mu M, and molecular modeling and biochemical studies suggested that the thumb domain could be the target site for this new class of NS5B inhibitors. (C) 2011 Elsevier Ltd. All rights reserved.
Pyridobenzothiazole derivatives as new chemotype targeting the HCV NS5B polymerase
摘要:
Hepatitis C virus (HCV) infection has been recognized as the major cause of liver failure that can lead to hepatocellular carcinoma. Among all the HCV proteins, NS5B polymerase represents a leading target for drug discovery strategies. Herein, we describe our initial research efforts towards the identification of new chemotypes as allosteric NS5B inhibitors. In particular, the design, synthesis, in vitro anti-NS5B and in cellulo anti-HCV evaluation of a series of 1-oxo-1H-pyrido[2,1-b][1,3]benzothiazole-4-carboxylate derivatives are reported. Some of the newly synthesized compounds showed an IC50 ranging from 11 to 23 mu M, and molecular modeling and biochemical studies suggested that the thumb domain could be the target site for this new class of NS5B inhibitors. (C) 2011 Elsevier Ltd. All rights reserved.
Sustainable, three-component, one-pot procedure to obtain active anti-flavivirus agents
作者:Tommaso Felicetti、Maria Sole Burali、Chin Piaw Gwee、Kitti Wing Ki Chan、Sylvie Alonso、Serena Massari、Stefano Sabatini、Oriana Tabarrini、Maria Letizia Barreca、Violetta Cecchetti、Subhash G. Vasudevan、Giuseppe Manfroni
DOI:10.1016/j.ejmech.2020.112992
日期:2021.1
number of purification steps, the use of hazardous reagents and environmentally unsustainable generation of waste. Considering the promising antiviral activity of PBTZ analogues which require further exploration, in this work, we report the development of a new and sustainable three-component reaction (3CR) that can be combined with a basic hydrolysis in a one-pot procedure to obtain the PBTZ scaffold
A new route to α-hetero β-enamino esters using a mild and convenient solvent-free process assisted by focused microwave irradiation
作者:Zohra Dahmani、Mustapha Rahmouni、Richard Brugidou、Jean Pierre Bazureau、Jack Hamelin
DOI:10.1016/s0040-4039(98)01894-2
日期:1998.11
New alpha-hetero beta-enamino esters 5 (X - NH, O, S) are obtained in good to excellent yields by transamination reactions from ethyl 3-dimethylamino acrylate 2(a-c) and various volatile amines 3(a-e) using solvent-free conditions assisted by focused microwave irradiation. Most of the alpha-hetero beta-enamino ester derivatives 3 present a (E)-s-cis/trans conformation. (C) 1998 Elsevier Science Ltd. All rights reserved.