Extended Data Fig. 2: Optimal fragments of R1, R2 and R3, and chemical structures and bioactivities of compounds generated by combination of the optimal fragments.

(a) Optimal fragments of R1, R2 and R3 obtained in a stepwise optimization process. (b) Compounds 5a-p [epimeric mixtures, (R)-epimers, and (S)-epimers]. Enzymatic inhibitory activities (IC50) and biophysical activities [thermal shift (∆Tm) values] were measured by the FRET and DSF assays, respectively. Data are shown as mean ± SD, n = 3 biological replicates.