Tyrosyl-tRNA synthetase (TyrRS) is an aminoacyl-tRNA synthetase family protein that possesses an essential role in bacterial protein synthesis. The synthesis, structure-activity relationship, and evolution of a novel series of adenosine-containing 3-arylfuran-2(5H)-ones as TyrRS inhibitors are described. Advanced compound d3 from this series exhibited excellent affinity for TyrRS with IC50 of 0.61
3-Arylfuran-2(5H)-one derivatives show good antibacterial activity and were determined as tyrosyl-tRNA synthetase (TyrRS) inhibitors. In a systematic medicinal chemistry exploration, we demonstrated chemical opportunities to treat infections caused by Helicobacter pylori. Twenty 3-arylfuran-2(5H)-ones were synthesized and evaluated for anti-H. pylori, antioxidant and anti-urease activities which are closely interconnected with H. pylori infection. The results displayed that some of the compounds show excellent antioxidant activity, and good anti-H. pylori and urease inhibitory activities. Out of these compounds, 3( 3-methylphenyl) furan-2(5H)-one (b9) showed the most potent antioxidant activity (IC50 = 8.2 mu M) and good anti-H. pylori activity (MIC50 = 2.6 mu g/mL), and it can be used as a good candidate for discovering novel anti-gastric ulcer agent. (C) 2015 Elsevier Ltd. All rights reserved.
作者:Robert W. Carling、Michael G.N. Russell、Kevin W. Moore、Andrew Mitchinson、Alexander Guiblin、Alison Smith、Keith A. Wafford、George Marshall、John R. Atack、Leslie J. Street
DOI:10.1016/j.bmcl.2006.03.081
日期:2006.7
Novel synthetic routes have been devised for the preparation of previously inaccessible 2,3,7-trisubstituted pyrazolo[1,5-d][1,2,4]triazines 2. These compounds are high affinity ligands for the GABA(A) benzodiazepine binding site and some analogues show functional selectivity for agonism at alpha 3-containing receptors over alpha 1-containing receptors with the lead compound being 32. (c) 2006 Elsevier Ltd. All rights reserved.
PYRAZOLO-TRIAZINE DERIVATIVES AS LIGANDS FOR GABA RECEPTORS