Synthesis and pharmacological evaluation of 2-aryloxy/arylamino-5- cyanobenzenesulfonylureas as novel thromboxane A2 receptor antagonists

Sylvie Mireille Bambi-Nyanguile, Julien Hanson, Annie Ooms, Lutfiye Alpan, Philippe Kolh, Jean-Michel Dogne, Bernard Pirotte

Research output: Contribution to journalArticlepeer-review


New series of original 2-aryloxy/arylamino-5-cyanobenzenesulfonylureas were synthesized and evaluated as thromboxane A2 receptor (TP receptor) antagonists. A functional pharmacological test was used, which consisted of measuring the inhibition of intracellular calcium mobilization in a model of mammalian cell line that specifically over-expressed the individual TPα or TPβ isoforms. 2-Arylamino-5-cyanobenzenesulfonylureas exhibited virtually identical affinity and/or functional activity than 2-aryloxy-5- cyanobenzenesulfonylureas for both TPα and TPβ, but some 2-aryloxy-substituted compounds showed increased selectivity for TPβ relative to TPα. Several compounds were found to be as potent as the 2-arylamino-5-nitrobenzenesulfonylurea reference compound BM-573, supporting the view that the bioisosteric replacement of the nitro group by a cyano group was tolerated. TP receptor antagonist activity of the most promising molecules was confirmed in a platelet aggregation assay using the TP receptor agonist U-46619 as a proaggregant. Three compounds (7e, 7h and 8h) were identified as leads for further non-clinical pharmacological and toxicological studies. © 2013 Elsevier Masson SAS. All rights reserved.

Original languageEnglish
Pages (from-to)32-40
Number of pages9
JournalEuropean Journal of Medicinal Chemistry
Publication statusPublished - 23 Sep 2013


  • 2-Aryloxy/arylamino-5- cyanobenzenesulfonylureas
  • Antiplatelet agents
  • Thromboxane receptor antagonists


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