8-Mercaptoguanine-based inhibitors of <i>Mycobacterium tuberculosis</i> dihydroneopterin aldolase: synthesis, <i>in vitro</i> inhibition and docking studies
作者:Alexia de Matos Czeczot、Candida Deves Roth、Rodrigo Gay Ducati、Kenia Pissinate、Raoní Scheibler Rambo、Luís Fernando Saraiva Macedo Timmers、Bruno Lopes Abbadi、Fernanda Souza Macchi、Víctor Zajaczkowski Pestana、Luiz Augusto Basso、Pablo Machado、Cristiano Valim Bizarro
DOI:10.1080/14756366.2021.1900157
日期:2021.1.1
Abstract The dihydroneopterin aldolase (DHNA, EC 4.1.2.25) activity of FolB protein is required for the conversion of 7,8-dihydroneopterin (DHNP) to 6-hydroxymethyl-7,8-dihydropterin (HP) and glycolaldehyde (GA) in the folate pathway. FolB protein from Mycobacterium tuberculosis (MtFolB) is essential for bacilli survival and represents an important molecular target for drug development. S8-functionalized
1H-Benzo[d]imidazoles and 3,4-dihydroquinazolin-4-ones: Design, synthesis and antitubercular activity
作者:Fernanda Souza Macchi、Kenia Pissinate、Anne Drumond Villela、Bruno Lopes Abbadi、Valnês Rodrigues-Junior、Débora Dreher Nabinger、Stefani Altenhofen、Nathalia Sperotto、Adílio da Silva Dadda、Fernanda Teixeira Subtil、Talita Freitas de Freitas、Ana Paula Erhart Rauber、Ana Flávia Borsoi、Carla Denise Bonan、Cristiano Valim Bizarro、Luiz Augusto Basso、Diógenes Santiago Santos、Pablo Machado
DOI:10.1016/j.ejmech.2018.06.005
日期:2018.7
zebrafish (Danio rerio) toxicity models. 3,4-Dihydroquinazolin-4-ones 9q and 9w were considered the lead compounds of these series of molecules with MIC values of 0.24 μM and 0.94 μM against M. tuberculosis H37Rv, respectively. Taken together, these data indicate that this class of compounds may furnish candidates for future development of novel anti-TB drugs.
使用经典的杂交方法,合成了一系列1 H-苯并[ d ]咪唑和3,4-二氢喹唑啉-4-酮(39个实例),并被评估为结核分枝杆菌生长的抑制剂。化学修饰研究产生了有效的抗结核药,对结核分枝杆菌H37Rv菌株的最低抑菌浓度(MIC)值低至0.24μM。此外,合成的化合物对一线药物具有四个不同耐药水平的四个耐药菌株具有活性。这些分子对带有IC 50s的HepG2,HaCat和Vero细胞无明显毒性 > 30μM。使用MTT和中性红分析评估了哺乳动物细胞培养物中的生存力。此外,一些3,4-二氢喹唑啉-4-酮表现出心脏毒性,在斑马鱼中没有神经毒性或形态学改变的信号(低风险斑马鱼)毒性的模型。3,4-二氢喹唑啉-4-酮9q和9w被认为是该系列分子中针对结核分枝杆菌H37Rv的MIC值为0.24μM和0.94μM的先导化合物。综合来看,这些数据表明这类化合物可为新型抗结核药物的未来开发提供候选。
Synthesis and in vitro Evaluation of West Nile Virus Protease Inhibitors Based on the 2-{6-[2-(5-Phenyl-4<i>H</i>-{1,2,4]triazol-3-ylsulfanyl)acetylamino]benzothiazol-2-ylsulfanyl}acetamide Scaffold
作者:Sanjay Samanta、Ting Liang Lim、Yulin Lam
DOI:10.1002/cmdc.201300114
日期:2013.6
NS2B‐NS3 proteaseinhibitor with a 2‐6‐[2‐(5‐phenyl‐4H‐[1,2,4]triazol‐3‐ylsulfanyl)acetylamino]benzothiazol‐2‐ylsulfanyl}acetamide scaffold was identified during screening. Optimization of this initial hit by synthesis and screening of a focused compound library with this scaffold led to the identification of a novel uncompetitive inhibitor (1 a24, IC50=3.4±0.2 μM) of the WNV NS2B‐NS3 protease. Molecular
New insights into the SAR and drug combination synergy of 2-(quinolin-4-yloxy)acetamides against Mycobacterium tuberculosis
作者:Bruno Couto Giacobbo、Kenia Pissinate、Valnês Rodrigues-Junior、Anne Drumond Villela、Estêvão Silveira Grams、Bruno Lopes Abbadi、Fernanda Teixeira Subtil、Nathalia Sperotto、Rogério Valim Trindade、Davi Fernando Back、Maria Martha Campos、Luiz Augusto Basso、Pablo Machado、Diógenes Santiago Santos
DOI:10.1016/j.ejmech.2016.11.048
日期:2017.1
2-(Quinolin-4-yloxy)acetamides have been described as potent and selective in vitro inhibitors of Mycobacterium tuberculosis (Mtb) growth. Herein, a new series of optimized compounds were found to demonstrate highly potent antitubercular activity, with minimum inhibitory concentration (MIC) values against drug-susceptible and drug-resistant Mycobacterium tuberculosis strains in the submicromolar range