Synthesis, crystal structure, structure-activity relationships, and antiviral activity of a potent SARS coronavirus 3CL protease inhibitor

A potent SARS coronavirus (CoV) 3CL protease inhibitor (TG- 0205221, K-i = 53 nM) has been developed. TG- 0205221 showed remarkable activity against SARS CoV and human coronavirus ( HCoV) 229E replications by reducing the viral titer by 4.7 log (at 5 mu M) for SARS CoV and 5.2 log (at 1.25 mu M) for...

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