简介内容:SPR39, a potent inhibitor of the SARS-CoV-2 main protease (Mpro), demonstrates inhibitory Ki values of ?M for SARS-CoV-2 Mpro, and and ?M for human Cathepsin L (hCatL) and human Cathepsin B (hCatB) respectively. It exhibits antiviral properties and cytotoxicity.