The main protease and RNA-dependent RNA polymerase are two prime targets for SARS-CoV-2.

The coronavirus disease 2019 (COVID-19) pandemic, caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), poses an unprecedented global health crisis. It is particularly urgent to develop clinically effective therapies to contain the pandemic. The main protease (M ^pro ) and the RNA-dependent RNA polymerase (RdRP), which are responsible for the viral polyprotein proteolytic process and viral genome replication and transcription, respectively, are two attractive drug targets for SARS-CoV-2. This review summarizes up-to-date progress in the structural and pharmacological aspects of those two key targets above. Different classes of inhibitors individually targeting M ^pro and RdRP are discussed, which could promote drug development to treat SARS-CoV-2 infection.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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