Synthesis and Cytotoxicity Studies of Novel 2‐Hydrazonylpyrido[2,3‐b]pyrazin‐3(4H)‐ones

Abstract

In an attempt to develop potent antitumor agents, a series of novel 2-hydrazonylpyrido[2,3-b]pyrazin-3(4H)-one derivatives were designed and synthesized. All the prepared compounds were screened for their cytotoxic activities against A549, MDA-MB-231 and HT-29 cell lines in vitro. Pharmacological data indicated that five of the target compounds showed cytotoxicity against A549 cell line below a concentration of 1 µM. Compound 15g was the most potent one with IC(50) values of 0.19, 2.11 and 2.15 µM against A549, MDA-MB-231 and HT29 cell lines, respectively.