Bonducellpin D may show inhibitory activities on the Para3 virus. It also exhibits moderate activity against four tested human cancer cell lines, HepG-2, K562, HeLa, and Du145.
Remdesivir nucleoside monophosphate, a metabolite of Remdesivir, is a potent antiviral compound with nucleoside analogue characteristics. It exhibits effective antiviral activity against both SARS-CoV and MERS-CoV.
Blancoxanthone is a molecule isolated from plants could also be potential drug candidates against COVID-19. Moreover, these could also show promising inhibitory effects against influenza-parainfluenza viruses, respiratory syncytial virus, severe acute respiratory syndrome (SARS), and Middle East respiratory syndrome coronavirus (MERS-CoV).
Anti-MERS-3A1 mAb (MERS-3A1) is a high-affinity human monoclonal IgG1 antibody derived from CHO cells. It effectively inhibits the interaction between the MERS-CoV spike protein and the DPP4 receptor[1].
UAWJ9-36-1 is a SARS-CoV-2 Protease inhibitor (IC50 = 51 nM). UAWJ9-36-1 showed potent binding and enzymatic inhibition against the Mpro's from SARS-CoV-2, SARS-CoV, MERS-CoV, HCoV-OC43, HCoV-NL63, HCoV-229E, and HCoV-HKU1. UAWJ9-36-1 is a promising candidate to be further developed as a broad-spectrum coronavirus antiviral.
UAWJ9-36-3 is a SARS-CoV-2 Protease inhibitor (IC50 = 54 nM). UAWJ9-36-3 showed potent binding and enzymatic inhibition against the Mpro's from SARS-CoV-2, SARS-CoV, MERS-CoV, HCoV-OC43, HCoV-NL63, HCoV-229E, and HCoV-HKU1. UAWJ9-36-3 is a promising candidate to be further developed as a broad-spectrum coronavirus antiviral.
Mpro inhibitor N3 hemihydrate is a potent inhibitor of SARS-CoV-2 Mpro with an EC50 of 16.77 μM for SARS-CoV-2. Mpro inhibitor N3 hemihydrate specifically inhibits Mpro from multiple coronaviruses, including SARS-CoV and MERS-CoV. Mpro inhibitor N3 hemihydrate displays inhibition against HCoV-229E, FIPV, and MHV-A59 with individual IC50 of 4.0 μM, 8.8 μM, and 2.7 μM, respectively[1][2]. Mpro inhibitor N3 hemihydrate (0-0.64 μM) is able to penetrate cells to inhibit the replication of IBV viruses, probably at the beginning of infection in embryos[3]. [1]. Jin Z, et al. Structure of Mpro from SARS-CoV-2 and discovery of its inhibitors. Nature. 2020;582(7811):289-293.[2]. Yang H, et al. Design of wide-spectrum inhibitors targeting coronavirus main proteases [published correction appears in PLoS Biol. 2005 Nov;3(11):e428]. PLoS Biol. 2005;3(10):e324.[3]. Wang F, et al. Structure of Main Protease from Human Coronavirus NL63: Insights for Wide Spectrum Anti-Coronavirus Drug Design. Sci Rep. 2016;6:22677. Published 2016 Mar 7.