Discovery, Synthesis, And Structure-Based Optimization of a Series of <i>N</i>-(<i>tert</i>-Butyl)-2-(<i>N</i>-arylamido)-2-(pyridin-3-yl) Acetamides (ML188) as Potent Noncovalent Small Molecule Inhibitors of the Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV) 3CL Protease
作者:Jon Jacobs、Valerie Grum-Tokars、Ya Zhou、Mark Turlington、S. Adrian Saldanha、Peter Chase、Aimee Eggler、Eric S. Dawson、Yahira M. Baez-Santos、Sakshi Tomar、Anna M. Mielech、Susan C. Baker、Craig W. Lindsley、Peter Hodder、Andrew Mesecar、Shaun R. Stauffer
DOI:10.1021/jm301580n
日期:2013.1.24
A high-throughput screen of the NIH molecular libraries sample collection and subsequent optimization of a lead dipeptide-like series of severe acute respiratory syndrome (SARS) main protease (3CLpro) inhibitors led to the identification of probe compound ML188 (16-(R), (R)-N-(4-(tert-butyl)phenyl)-N-(2-(tert-butylamino)-2-oxo-1-(pyridin-3-yl)ethyl)furan-2-carboxamide, Pubchem CID: 46897844). Unlike the majority of reported coronavirus 3CLpro inhibitors that act via covalent modification of the enzyme, 16-(R) is a noncovalent SARS-CoV 3CLpro inhibitor with moderate MW and good enzyme and antiviral inhibitory activity. A multicomponent Ugi reaction was utilized to rapidly explore structure-activity relationships within S-1, S-1, and S-2 enzyme binding pockets. The X-ray structure of SARS-CoV 3CLpro bound with 16-(R) was instrumental in guiding subsequent rounds of chemistry optimization. 16-(R) provides an excellent starting point for the further design and refinement of 3CLpro inhibitors that act by a noncovalent mechanism of action.
Expedited Approach toward the Rational Design of Noncovalent SARS-CoV-2 Main Protease Inhibitors
作者:Naoya Kitamura、Michael Dominic Sacco、Chunlong Ma、Yanmei Hu、Julia Alma Townsend、Xiangzhi Meng、Fushun Zhang、Xiujun Zhang、Mandy Ba、Tommy Szeto、Adis Kukuljac、Michael Thomas Marty、David Schultz、Sara Cherry、Yan Xiang、Yu Chen、Jun Wang
DOI:10.1021/acs.jmedchem.1c00509
日期:2022.2.24
Mpro inhibitor GC376. Significantly, 23R is highly selective compared with covalent inhibitors such as GC376, especially toward host proteases. The cocrystal structure of SARS-CoV-2 Mpro with 23R revealed a previously unexplored bindingsite located in between the S2 and S4 pockets. Overall, this study discovered 23R, one of the most potent and selective noncovalent SARS-CoV-2 Mpro inhibitors reported
SARS-CoV-2 的主要蛋白酶 (M pro ) 是经过验证的抗病毒药物靶点。据报道,几种 M pro抑制剂具有有效的酶抑制和细胞抗病毒活性,包括GC376 、 boceprevir 、钙蛋白酶抑制剂 II和XII ,每种抑制剂都含有共价修饰催化 Cys145 的反应弹头。将基于结构的药物设计与一锅 Ugi 四组分反应相结合,我们发现了最有效的非共价抑制剂之一23R ( Jun8-76-3A ),其结构与典型的 M pro抑制剂GC376不同。值得注意的是,与GC376等共价抑制剂相比, 23R具有高度选择性,尤其是针对宿主蛋白酶。 SARS-CoV-2 M pro与23R的共晶结构揭示了位于 S2 和 S4 口袋之间的先前未探索的结合位点。总体而言,这项研究发现了23R ,这是迄今为止报道的最有效和选择性最强的非共价 SARS-CoV-2 M pro抑制剂之一,以及 M pro中的一个新的结合口袋,可用于抑制剂设计。