triazole(3) Antiviral(3) Huisgen 1,3-dipolar cycloaddition(3) nucleosides(3) Thymidine analogs.(1) single crystal X-ray diffraction(1) molecular docking(1) COVID-19(1) TLR2(1) Angiotensin-converting enzyme 2 (ACE2)(1) expression vectors via GPI anchor(1) 1D and 2D NMR spectroscopy(1) 1,3,4-oxadiazole(1) Infection(1) intermolecular interactions(1) tetrazole(1) antiviral activity(1) SARS-CoV-2(1) rs111200466.(1) Coronavirus disease 2019 (COVID-19)(1) cytotoxicity(1) anti-influenza and anti-HIV activity(1) homonucleosides(1) correlation(1) mutations(1) Severe acquired respiratory syndrome (SARS)(1) 1,2,3-Triazole(1) anticancer activity(1) Mortality(1) spike (S) protein(1)