Inhibition of carbonic anhydrase isoforms I, II, IX and XII with novel Schiff bases: Identification of selective inhibitors for the tumor-associated isoforms over the cytosolic ones
作者:Busra Sarikaya、Mariangela Ceruso、Fabrizio Carta、Claudiu T. Supuran
DOI:10.1016/j.bmc.2014.09.021
日期:2014.11
A series of new Schiff bases was obtained from sulfanilamide, 3-fluorosulfanilamide or 4-(2-aminoethyl)-benzenesulfonamide and aromatic/heterocyclic aldehydes incorporating both hydrophobic and hydrophilic moieties. The obtained sulfonamides were investigated as inhibitors of four physiologically relevant carbonic anhydrase (CA, EC 4.2.1.1) isoforms, the cytosolic CA I and II, as well as the transmembrane
从磺胺,3-氟磺酰胺或4-(2-氨基乙基)-苯磺酰胺和结合了疏水和亲水部分的芳族/杂环醛获得了一系列新的席夫碱。研究了获得的磺酰胺作为四种生理相关的碳酸酐酶(CA,EC 4.2.1.1)同工型,胞质CA I和II以及跨膜,与肿瘤相关的CA IX和XII的抑制剂。大多数衍生物是中等强度的或较弱的hCA I / II抑制剂,但其中一些显示出对CA IX和/或XII的纳摩尔亲和力,这使其成为同工型选择性化合物的有趣例子。初始醛中存在的芳基/杂芳基部分的性质是影响效价和同工型选择性的主要因素。最好和最多的CA IX选择性化合物包含了以下部分,例如4-甲硫基苯基,4-氰基苯基-,4-(2-吡啶基)-苯基和4-氨基乙基苯磺酰胺骨架。最好的hCA XII抑制剂,也显示出对该同种型的选择性,并结合了2-甲氧基-4-硝基苯基-,2,3,5,6-四氟苯基和4-(2-吡啶基)-苯基官能团,并且是4-的衍生物氨基