Synthesis and potent cytotoxicity of some novel imidazopyridine derivatives against MCF-7 human breast adenocarcinoma cell line

Abstract

A series of novel 2-phenyl-3H-imidazo[4,5-b]pyridines and 2-phenyl-3H-imidazo[4,5-c]pyridines and their precursors were synthesized. Their in vitro cytotoxicity against MCF-7 human breast adenocarcinoma cell line has been investigated, and some of the tested compounds have shown high cytotoxic activity against MCF-7 cells. N-Hydroxy-4-(3H-imidazo[4,5-b]pyridin-2-yl)benzenecarboximidamide was the most active compound with IC50 equal to 0.082 μM, which is an activity almost as high as that of a commonly used anticancer drugs docetaxel and imatinib mesylate.