TDI-015051

TDI-015051 is an orally active inhibitor for SARS-CoV-2 nonstructural protein 14 (NSP14) with an IC50 ≤0.15 nM. TDI-015051 inhibits SARS-CoV-2 NSP14 in Huh-7.5 cell (EC50=11.4 nM) and in ACE2-TMPRSS2 expressing A549 cell (EC50=64.7 nM) . TDI-015051 also inhibits other coronaviruses like α-hCoV-NL63, α-hCoV-229E and β-hCoV-MERS with IC50s of 1.7, 2.6 and 3.6 nM, respectively. TDI-015051 binds to the SAH-stabilized cap binding pocket, inhibits viral RNA methylation and viral replication, and exhibits anti-infectious activity in mouse models[1].