Carbonic Anhydrase Activators: Design of High Affinity Isozymes I, II, and IV Activators, Incorporating Tri-/Tetrasubstituted-pyridinium-azole Moieties
作者:Monica Ilies、Mircea D. Banciu、Marc A. Ilies、Andrea Scozzafava、Miron T. Caproiu、Claudiu T. Supuran
DOI:10.1021/jm011031n
日期:2002.1.1
bovine isozymes), for which some of the new compounds showed affinities in the low nanomolar range, whereas against hCA II, their affinities were in the range of 95-150 nM. Substitution patterns of the pyridinium ring leading to best activity included 4-phenyl-2,6-dialkyl moieties or 2,4,6-tri- and 2,3,4,6-tetraalkyl groups. Ex vivo experiments showed some of the new activators to strongly enhance CA activity
通过氨基唑(3-氨基吡唑,2-氨基咪唑和5-氨基四唑)与三或四取代的吡啶鎓盐的反应获得了一系列紧密结合的碳酸酐酶(CA)活化剂。事实证明,这里报道的许多结合了吡咯部分的新吡啶鎓盐都是三种CA同工酶CA I,II和IV的有效体外活化剂。对hCA I和bCA IV(h =人; b =牛同工酶)检测到非常好的活性,其中一些新化合物显示出低纳摩尔范围的亲和力,而对hCA II的亲和力在95范围内-150 nM。导致最佳活性的吡啶鎓环的取代方式包括4-苯基-2,6-二烷基部分或2,4,6-三-和2,3,4,6-四烷基。体外实验显示,一些新的激活剂在与人红细胞孵育后能显着增强CA活性。此外,由于它们的阳离子性质,这些化合物中的一些(咪唑和吡唑衍生物)是不渗透膜的,因此可区分胞质和膜结合的CA同工酶。本文是膜不透CA激活剂的首次报道。另一方面,吡啶鎓四唑衍生物确实穿透生物膜。此类CA激活剂可能会导致药物