Ciclesonide

All compounds except for ciclesonide and EIDD-1931 were purchased from MedChemExpress (Monmouth Junction, NJ, USA). ciclesonide and EIDD-1931 were purchased from Cayman Chemical (Ann Arbor, MI, USA). The following are the lot numbers and purities of each compound: aprotinin (lot, 62009; purity of ≥98.0%), bromhexine hydrochloride (lot, 15159; purity of 99.39%), niclosamide (lot, 15718; purity of 98.68%), ciclesonide (lot, 0472344-2; purity of ≥98.0%), remdesivir (lot, 46182; purity of 99.78%), EIDD-2801 (lot, 67548; purity of 99.94%), and EIDD-1931 (lot, 0590872-1; purity of ≥95.0%). Stock solution was dissolved in dimethyl sulfoxide (DMSO) at a 10 mM concentration. Anti‐SARS‐CoV‐2 N protein antibody was purchased from Sino Biological Inc. (Beijing, China). Alexa Fluor 488 goat anti‐rabbit IgG (H + L) secondary antibody and Hoechst 33342 were purchased from Molecular Probes. Paraformaldehyde (PFA) (32% aqueous solution) and normal goat serum were purchased from Electron Microscopy Sciences (Hatfield, PA, USA) and Vector Laboratories, Inc. (Burlingame, CA, USA), respectively.

All compounds except for ciclesonide and EIDD-1931 were purchased from MedChemExpress (Monmouth Junction, NJ, USA). ciclesonide and EIDD-1931 were purchased from Cayman Chemical (Ann Arbor, MI, USA). The following are the lot numbers and purities of each compound: aprotinin (lot, 62009; purity of ≥98.0%), bromhexine hydrochloride (lot, 15159; purity of 99.39%), niclosamide (lot, 15718; purity of 98.68%), ciclesonide (lot, 0472344-2; purity of ≥98.0%), remdesivir (lot, 46182; purity of 99.78%), EIDD-2801 (lot, 67548; purity of 99.94%), and EIDD-1931 (lot, 0590872-1; purity of ≥95.0%). Stock solution was dissolved in dimethyl sulfoxide (DMSO) at a 10 mM concentration. Anti‐SARS‐CoV‐2 N protein antibody was purchased from Sino Biological Inc. (Beijing, China). Alexa Fluor 488 goat anti‐rabbit IgG (H + L) secondary antibody and Hoechst 33342 were purchased from Molecular Probes. Paraformaldehyde (PFA) (32% aqueous solution) and normal goat serum were purchased from Electron Microscopy Sciences (Hatfield, PA, USA) and Vector Laboratories, Inc. (Burlingame, CA, USA), respectively.