| Summary: | Some (<i>E</i>)-3-(3-(4-(benzyloxy)phenyl)-1-phenyl-1<i>H</i>-pyrazol-4-yl)-1-phenylprop-2-en-1-one conjugates <b>5a</b>–<b>r</b> were designed; synthesized; characterized by <sup>1</sup>H, <sup>13</sup>C NMR, and ESI-MS; and evaluated for tubulin polymerization inhibitory activity and in vitro cytotoxicity against breast (MCF-7), cervical (SiHa), and prostate (PC-3) cancer cell lines, as well as a normal cell line (HEK-293T). The compounds were also tested to determine their binding modes at the colchicine-binding site of tubulin protein (PDB ID-3E22), for in silico ADME prediction, for bioactivity study, and for PASS prediction studies. Among all the synthesized conjugates, compound <b>5o</b> exhibited excellent cytotoxicity with an IC<sub>50</sub> value of 2.13 ± 0.80 µM (MCF-7), 4.34 ± 0.98 µM (SiHa), and 4.46 ± 0.53 µM (PC-3) against cancer cell lines. The compound did not exhibit significant toxicity to the HEK cells. Results of the in silico prediction revealed that the majority of the conjugates possessed drug-like properties.
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