Fig. 3. The validation of the four active compounds at cellular and molecular level.
Dose-response curves of cell viability in HEK293T, SK-N-AS, IMR32, and LAN5 cell lines after 72-h treatment and SPR sensorgrams of the compounds 11 (a), 13 (b), 19 (c) and 22 (d) tested by CCK-8 assay and Biacore 8 K, respectively.