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

Article Details

Citation

Winum JY, Thiry A, Cheikh KE, Dogne JM, Montero JL, Vullo D, Scozzafava A, Masereel B, Supuran CT

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

Bioorg Med Chem Lett. 2007 May 15;17(10):2685-91. Epub 2007 Mar 12.

PubMed ID
17376683 [ View in PubMed
]
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 4.2.1.1). 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.

DrugBank Data that Cites this Article

Binding Properties
DrugTargetPropertyMeasurementpHTemperature (°C)
AcetazolamideCarbonic anhydrase 1Ki (nM)250N/AN/ADetails
AcetazolamideCarbonic anhydrase 14Ki (nM)41N/AN/ADetails
AcetazolamideCarbonic anhydrase 2Ki (nM)12N/AN/ADetails
AcetazolamideCarbonic anhydrase 4Ki (nM)74N/AN/ADetails
AcetazolamideCarbonic anhydrase 7Ki (nM)2.5N/AN/ADetails
TopiramateCarbonic anhydrase 1Ki (nM)250N/AN/ADetails
TopiramateCarbonic anhydrase 2Ki (nM)10N/AN/ADetails
TopiramateCarbonic anhydrase 4Ki (nM)4900N/AN/ADetails