Elsevier

Drug Discovery Today

Volume 26, Issue 3, March 2021, Pages 804-816
Drug Discovery Today

Review
Post screen
Potential SARS-CoV-2 main protease inhibitors

https://doi.org/10.1016/j.drudis.2020.12.005Get rights and content

Highlights

  • The SARS-CoV-2 main protease is a prime drug target.

  • Coronavirus main proteases share a structurally conserved substrate-binding region.

  • The structure and sequence similarity of SARS-CoV-2 to SARS-CoV readily allows testing of inhibitors designed for the latter.

  • Both covalent and non-covalent inhibitors of the SARS-CoV-2 main protease have been designed.

The coronavirus disease 2019 (COVID-19) pandemic has prompted an urgent need for new treatment strategies. No target-specific drugs are currently available for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), but new drug candidates targeting the viral replication cycle are being explored. A prime target of drug-discovery efforts is the SARS-CoV-2 main protease (Mpro). The main proteases of different coronaviruses, including SARS-CoV-2, SARS-CoV and Middle East respiratory syndrome coronavirus (MERS-CoV), share a structurally conserved substrate-binding region that can be exploited to design new protease inhibitors. With the recent reporting of the X-ray crystal structure of the SARS-CoV-2 Mpro, studies to discover Mpro inhibitors using both virtual and in vitro screening are progressing rapidly. This review focusses on the recent developments in the search for small-molecule inhibitors targeting the SARS-CoV-2 Mpro.

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