Structure–Activity Relationships of Pyrazolo[1,5-<i>a</i>]pyrimidin-7(4<i>H</i>)-ones as Antitubercular Agents
作者:Sangmi Oh、M. Daben J. Libardo、Shaik Azeeza、Gary T. Pauly、Jose Santinni O. Roma、Andaleeb Sajid、Yoshitaka Tateishi、Caroline Duncombe、Michael Goodwin、Thomas R. Ioerger、Paul G. Wyatt、Peter C. Ray、David W. Gray、Helena I. M. Boshoff、Clifton E. Barry
DOI:10.1021/acsinfecdis.0c00851
日期:2021.2.12
various modes of action against Mycobacterium tuberculosis (Mtb). We explored this scaffold through the synthesis of a focused library of analogues and identified key features of the pharmacophore while achieving substantial improvements in antitubercular activity. Our best hits had low cytotoxicity and showed promising activity against Mtb within macrophages. The mechanism of action of these compounds
Pyrazolo[1,5 - a ]pyrimidin-7(4 H )-one 通过高通量全细胞筛选被鉴定为潜在的抗结核药物。该支架的核心之前已被多次鉴定,并且与抗结核分枝杆菌( Mtb ) 的各种作用模式有关。我们通过合成一个集中的类似物库探索了这种支架,并确定了药效团的关键特征,同时实现了抗结核活性的显着改善。我们的最佳产品具有低细胞毒性,并显示出对Mtb的有希望的活性巨噬细胞内。这些化合物的作用机制与细胞壁生物合成、异戊二烯生物合成或铁吸收无关,正如其他具有这种核心结构的化合物所发现的那样。黄素腺嘌呤二核苷酸 (FAD) 依赖性羟化酶 (Rv1751) 的突变赋予了对这些化合物的抗性,该羟化酶通过分子氧的羟基化促进化合物分解代谢。我们的结果强调了化学聚集的风险,但没有建立化学相关生长抑制剂的机制相似性。
[EN] DIHYDROPYRIMIDINE COMPOUND AND APPLICATION THEREOF<br/>[FR] COMPOSÉ DIHYDROPYRIMIDINE ET SON UTILISATION<br/>[ZH] 二氢嘧啶类化合物、其应用
Discovery and Optimization of Triazolopyrimidinone Derivatives as Selective NLRP3 Inflammasome Inhibitors
作者:David Harrison、Mark G. Bock、John R. Doedens、Christopher A. Gabel、M. Katharine Holloway、Arwel Lewis、Jane Scanlon、Andrew Sharpe、Iain D. Simpson、Pamela Smolak、Grant Wishart、Alan P. Watt
DOI:10.1021/acsmedchemlett.2c00242
日期:2022.8.11
osteoarthritis, and gout. The discovery of potent and specific NLRP3inhibitors could reduce the burden of several common morbidities. In this study, we identified a weakly potent triazolopyrimidone hit (1) following an in silico modeling exercise. This was optimized to furnish potent and selective small molecule NLRP3inflammasomeinhibitors. Compounds such as NDT-30805 could be useful tool molecules
Synthesis of diverse acyclic precursors to pyrroles for studies of prebiotic routes to tetrapyrrole macrocycles
作者:Vanampally Chandrashaker、Marcin Ptaszek、Masahiko Taniguchi、Jonathan S. Lindsey
DOI:10.1039/c6nj02048h
日期:——
relied on the availability of diverse starting materials prepared by traditional chemical synthesis methods. Here the synthesis of all acyclic dicarbonyl compounds and α-aminoketones used in the prior prebiotic model studies is described. There are five sets of acyclic dicarbonyl compounds including (i) β-ketoesters bearing diverse 4-substituents, (ii) levulinic acid derivatives bearing selected 5-substituents