Fig. 1: Intracellular concentrations of TKB245 and TKB248.

VeroE6 or HeLa-ACE2-TMPRSS2 cells were incubated with 10, 50, and 100 μM of each compound for 6 hours, vigorously washed with PBS, and intracellular concentrations of each compound were determined using LC/MS. Bars indicate arithmetic means (n = 2). LOQ: Limit of Quantitation. Source data are provided as a Source Data file.