Synthesis, antiproliferative activities and in vitro biological evaluation of novel benzofuransulfonamide derivatives
2011
Yang, Li | Lei, Hua | Mi, Cheng-Gen | Liu, Huan | Zhou, Tian | Zhao, Ying-Lan | Lai, Xiao-Yun | Li, Zi-Cheng | Song, Hang | Huang, Wen-Cai
In a cell-based screen of novel antiproliferative agents, the hit compound 1a, which bears a benzofuransulfonamide scaffold, exhibited broad-spectrum antiproliferative activities against a panel of tumor cell lines. The promising in vitro antiproliferative activity and structural novelty of 1a prompted us to investigate the synthesis of five analogs of 1a and test their antiproliferative activities. The most potent analogue, 1h, exhibited enhanced antiproliferative activities compared with the parent 1a, and exhibited an IC₅₀ value against NCI-H460 cells of 4.13μM compared with 4.52μM for the positive control cisplatin. Flow cytometric analysis revealed that 1h induces significant levels of apoptosis in NCI-H460 cells in vitro at low micromolar concentrations. These results suggest that 1a and analogs based on its benzofuransulfonamide scaffold may constitute a novel class of antiproliferative agents, which deserve further study.
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