Figure 1
From: ABBV-744 as a potential inhibitor of SARS-CoV-2 main protease enzyme against COVID-19

(A) Structural overview of Mpro enzyme in complex with α-ketoamide inhibitor (αk-13b) (magenta color); (B) Close up view of the binding pocket of Mpro accommodated αk-13b; C: 2D-chemical structure of α-ketoamide inhibitor (αk-13b).