A series of novel 1,5-diarylpyrazole carboxamide derivatives was designed and synthesized. All the synthesized compounds were biologically evaluated for their in vitro cytotoxic activities against a panel of five cancer cell lines namely, DLD, Hela, K-562, SUIT and HepG-2. The results revealed that compound 5c exhibited the most prominent cytotoxic effect against four tested cell lines with growth inhibition percentages ranged from 75.95 to 123 % and IC50 values of 17.20 and 21.20 μM comparable to that of daunorubicin as a control drug (IC50 values of 13.30 and 22 μM) against K-562 and Hep-G2 cell lines, respectively. Molecular docking study suggested the ability of the tested compounds to inhibit EGFR-TK. Data showed that 5c possess the ability to bind to erlotinib binding site forming a stable complex with energy scores -7.73 compared to -7.63 for erlotinib. It potentially forms three hydrogen bonds with LYS 721 and GLU 638 residues. Data suggests that compound 5c is a promising lead in the design of further EGFR inhibitors.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.