A series of novel N-phenylsulfonylnicotinamide derivatives (1–24) have been synthesized and evaluated as potentialEGFR tyrosine kinase (TK) inhibitors. Among all the compounds, compound 10 (5-bromo-N-(4-chlorophenylsulfonyl)nicotinamide) showed the most potent growth inhibitory activity against EGFRTK and antiproliferative activity of MCF-7 cancer cell line in vitro, with IC50 value of 0.09 and 0