Journal of Enzyme Inhibition and Medicinal Chemistry (Jan 2020)

A class of carbonic anhydrase IX/XII – selective carboxylate inhibitors

  • Rakia Abd Alhameed,
  • Emanuela Berrino,
  • Zainab Almarhoon,
  • Ayman El-Faham,
  • Claudiu T. Supuran

DOI
https://doi.org/10.1080/14756366.2020.1715388
Journal volume & issue
Vol. 35, no. 1
pp. 549 – 554

Abstract

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A small series of 2,4-dioxothiazolidinyl acetic acids was prepared from thiourea, chloroacetic acid, aromatic aldehydes, and ethyl-2-bromoacetate. They were assayed for the inhibition of four physiologically relevant carbonic anhydrase (CA, EC 4.2.1.1) isoforms of human (h) origin, the cytosolic hCA I and II, and the transmembrane hCA IX and XII, involved among others in tumorigenesis (hCA IX and XII) and glaucoma (hCA II and XII). The two cytosolic isoforms were not inhibited by these carboxylates, which were also rather ineffective as hCA IX inhibitors. On the other hand, they showed submicromolar hCA XII inhibition, with KIs in the range of 0.30–0.93 µM, making them highly CA XII-selective inhibitors.

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