scholarly journals Potential Non-Covalent SARS-CoV-2 3C-like Protease Inhibitors Designed Using Generative Deep Learning Approaches and Reviewed by Human Medicinal Chemist in Virtual Reality

Author(s):  
Alex Zhavoronkov ◽  
Bogdan Zagribelnyy ◽  
Alexander Zhebrak ◽  
Vladimir Aladinskiy ◽  
Victor Terentiev ◽  
...  

<div> <div> <div> <div> <p>One of the most important SARS-CoV-2 protein targets for therapeutics is the 3C-like protease (main protease, Mpro). In our previous work1​we used the first Mpro crystal structure to become available, 6LU7. On February 4, 2020 Insilico Medicine released the first potential novel protease inhibitors designed using a ​de novo,​AI-driven generative chemistry approach. Nearly 100 X-ray structures of Mpro co-crystallized both with covalent and non-covalent ligands have been published since then. Here we utilize the recently published 6W63 crystal structure of Mpro complexed with a non-covalent inhibitor and combined two approaches used in our previous study: ligand-based and crystal structure-based. We published 10 representative structures for potential development with 3D representation in PDB format and welcome medicinal chemists for broad discussion and generated output analysis. The molecules in SDF format and PDB-models for generated protein-ligand complexes are available here and at https://insilico.com/ncov-sprint/.​Medicinal chemistry VR analysis was provided by ​Nanome team and the video of VR session is available at ​https://bit.ly/ncov-vr.​ </p> </div> </div> </div> </div>

Author(s):  
Alex Zhavoronkov ◽  
Bogdan Zagribelnyy ◽  
Alexander Zhebrak ◽  
Vladimir Aladinskiy ◽  
Victor Terentiev ◽  
...  

<div> <div> <div> <div> <p>One of the most important SARS-CoV-2 protein targets for therapeutics is the 3C-like protease (main protease, Mpro). In our previous work1​we used the first Mpro crystal structure to become available, 6LU7. On February 4, 2020 Insilico Medicine released the first potential novel protease inhibitors designed using a ​de novo,​AI-driven generative chemistry approach. Nearly 100 X-ray structures of Mpro co-crystallized both with covalent and non-covalent ligands have been published since then. Here we utilize the recently published 6W63 crystal structure of Mpro complexed with a non-covalent inhibitor and combined two approaches used in our previous study: ligand-based and crystal structure-based. We published 10 representative structures for potential development with 3D representation in PDB format and welcome medicinal chemists for broad discussion and generated output analysis. The molecules in SDF format and PDB-models for generated protein-ligand complexes are available here and at https://insilico.com/ncov-sprint/.​Medicinal chemistry VR analysis was provided by ​Nanome team and the video of VR session is available at ​https://bit.ly/ncov-vr.​ </p> </div> </div> </div> </div>


Author(s):  
Linlin Zhang ◽  
Daizong Lin ◽  
Xinyuanyuan Sun ◽  
Katharina Rox ◽  
Rolf Hilgenfeld

AbstractA novel coronavirus has been identified as the causative agent of a massive outbreak of atypical pneumonia originating at Wuhan, Hubei province, China. Involved in the formation of the coronavirus replication complex, the viral main protease (Mpro, also called 3CLpro) represents an attractive target for therapy. We determined the crystal structure of the unliganded Mpro at 1.75 Å resolution and used this structure to guide optimization of a series of alpha-ketoamide inhibitors. The main goal of the optimization efforts was improvement of the pharmacokinetic properties of the compounds. We further describe 1.95- and 2.20-Å crystal structures of the complex between the enzyme and the most potent alpha-ketoamide optimized this way. These structures will form the basis for further development of these compounds to antiviral drugs.


2011 ◽  
Vol 54 (16) ◽  
pp. 5890-5901 ◽  
Author(s):  
Arun K. Ghosh ◽  
Bruno D. Chapsal ◽  
Garth L. Parham ◽  
Melinda Steffey ◽  
Johnson Agniswamy ◽  
...  

Science ◽  
2020 ◽  
Vol 368 (6489) ◽  
pp. 409-412 ◽  
Author(s):  
Linlin Zhang ◽  
Daizong Lin ◽  
Xinyuanyuan Sun ◽  
Ute Curth ◽  
Christian Drosten ◽  
...  

The coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome–coronavirus 2 (SARS-CoV-2) is a global health emergency. An attractive drug target among coronaviruses is the main protease (Mpro, also called 3CLpro) because of its essential role in processing the polyproteins that are translated from the viral RNA. We report the x-ray structures of the unliganded SARS-CoV-2 Mpro and its complex with an α-ketoamide inhibitor. This was derived from a previously designed inhibitor but with the P3-P2 amide bond incorporated into a pyridone ring to enhance the half-life of the compound in plasma. On the basis of the unliganded structure, we developed the lead compound into a potent inhibitor of the SARS-CoV-2 Mpro. The pharmacokinetic characterization of the optimized inhibitor reveals a pronounced lung tropism and suitability for administration by the inhalative route.


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