Molecules (Apr 2016)

Synthesis and Antitumor Evaluation of Novel 5-Hydrosulfonyl-1H-benzo[d]imidazol-2(3H)-one Derivatives

  • Guang Ouyang,
  • Rongsheng Tong,
  • Jinqi Li,
  • Lan Bai,
  • Liang Ouyang,
  • Xingmei Duan,
  • Fengqiong Li,
  • Pin He,
  • Jianyou Shi,
  • Yuxin He

DOI
https://doi.org/10.3390/molecules21040516
Journal volume & issue
Vol. 21, no. 4
p. 516

Abstract

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A series of novel 5-hydrosulfonyl-1H-benzo[d]imidazol-2(3H)-one derivatives bearing natural product substructures has been successfully synthesized and their antitumor activity studied. These newly synthesized derivatives were characterized by 1H-NMR, 13C-NMR and high resolution mass spectral data, then screened as antitumor agents against the A549, HCC1937, and MDA-MB-468 human tumor cell lines using MTT cell proliferation assays. The results show that some of these compounds can effectively inhibit the growth of these cancerous cells, with compound 5b being the best one (IC50 = 2.6 μM). Flow cytometry data revealed that compound 5b induced apoptosis of HCC1937 cells with increased solution concentration. The structure and activity relationships (SAR) of these compounds is summarized.

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