alexa Carbonic anhydrase inhibitors. Inhibition of isoforms I, II, IV, VA, VII, IX, and XIV with sulfonamides incorporating fructopyranose-thioureido tails.


Medicinal Chemistry

Author(s): Winum JY, Thiry A, Cheikh KE, Dogn JM, Montero JL,

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Abstract A series of aromatic/heterocyclic sulfonamides incorporating 2,3:4,5-bis-O-(isopropylidene)-beta-d-fructopyranosyl-thioureido moieties has been synthesized and assayed for the inhibition of seven human isoforms of the zinc enzyme carbonic anhydrase (hCA, EC The new derivatives behaved as weak hCA I inhibitors (K(I)s of 9.4 -13.3microM), were efficient hCA II inhibitors (K(I)s of 6-750nM), and slightly inhibited isoforms hCA IV and hCA VA. Only the sulfanilamide derivative showed efficient and selective inhibition of hCA IV (K(I) of 10nM). These derivatives also showed excellent hCA VII inhibitory activity (K(I)s of 10-79nM), being less efficient as inhibitors of the transmembrane isoforms hCA IX (K(I)s of 10-4500nM) and hCA XIV (K(I)s of 21-3500nM). Two of the new compounds showed anticonvulsant action in a maximal electroshock seizure test in mice, with the fluorosulfanilamide derivative being a more efficient anticonvulsant than the antiepileptic drug topiramate. This article was published in Bioorg Med Chem Lett and referenced in Medicinal Chemistry

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