Abstract: Described herein are compounds and methods for the treatment of coronavirus infection. The compounds can function as an inhibitor of the main protease (Mpro) of coronaviruses. The compounds can include diphenylmethyl piperazine derivatives, diphenylmethyl piperidine derivatives, diphenylmethylidene piperidine derivatives, tricyclo[9.4.0.03,8]pentadeca-1(11),3(8),4,6,12,14-hexaen derivatives, tricyclo[9.4.0.03,8]pentadeca-1(11),3(8),4,6,9,12,14-heptaen derivatives, 6,11-dihydrobenzo[c][1]benzoxepin derivatives, 6,11-dihydrobenzo[c][1]benzothiepin derivatives, 5,5-dioxo-6,11-dihydrobenzo[c][1]benzothiepin derivatives, and 6-oxo-5,11-dihydrobenzo[c][1]benzazepin derivatives, as well as pharmaceutically acceptable salts, hydrates, and prodrugs thereof.