Fig. 8.

The interacting structures between our proposed compounds (ball-and-stick model) and selected important Mpro residues (stick model): (a) compound 9, (b) compound 9c, and (c) compound 9d. The red and blue lines indicate hydrogen bonding and electrostatic interactions, respectively. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)