s widely accepted that SARS‐CoV‐2 behaves similarly to SARS‐CoV‐1 with regard to viral entry and replication. Since the general genomic layout and replication kinetics are so conserved among MERS, SARS‐1, and SARS‐2 CoVs, investigating inhibitors of common structures is a logical step. The inhibitory strength against viral enzyme was expressed as IC50, which is the concentration of the inhibito