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. Author manuscript; available in PMC: 2023 Sep 19.
Published in final edited form as: J Med Chem. 2021 Sep 16;64(19):14702–14714. doi: 10.1021/acs.jmedchem.1c01214

Figure 3.

Figure 3.

The mechanism of inhibition of SARS-CoV-2 3CLpro by compound 1. Structure 13 represents the presumed tetrahedral intermediate formed prior to the thioester intermediate.