Carbonic anhydrase inhibitors. Part 43. Schiff bases derived from aromatic sulfonamides: towards more specific inhibitors for membrane-bound versus cytosolic isozymes
作者:CT Supuran、A Scozzafava、A Popescu、R Bobes-Tureac、A Banciu、A Creanga、G Bobes-Tureac、MD Banciu
DOI:10.1016/s0223-5234(97)81681-9
日期:1997.5
Schiff bases were prepared by reaction of sulfanilamide, homosulfanilamide and p-aminoethyl-benzenesulfonamide with substituted benzene- and heterocyclic aldehydes. The compounds were characterized by standard procedures and were assayed as inhibitors of three isozymes of carbonic anhydrase (CA). Several of these new compounds showed a modest two-fold selectivity for the membrane-bound (bovine) isozyme, CA IV (bCA IV) as compared to the cytosolic human isozymes hCA I and II, in contrast to classical inhibitors which are 17-33 times less effective against bCA IV. This greater selectivity toward bCA IV is due mainly to a decreased potency against HCA II relative to classical inhibitors. This type of compound might lead to the development of low molecular weight isozyme specific CA IV inhibitors.