Sulfonamides incorporating piperazine bioisosteres as potent human carbonic anhydrase I, II, IV and IX inhibitors
作者:Niccolò Chiaramonte、Silvia Bua、Andrea Angeli、Marta Ferraroni、Ilaria Picchioni、Gianluca Bartolucci、Laura Braconi、Silvia Dei、Elisabetta Teodori、Claudiu T. Supuran、Maria Novella Romanelli
DOI:10.1016/j.bioorg.2019.103130
日期:2019.10
structural modifications changed the selectivity profile of the analogues from hCA IV to hCA I and II, and improved potency. Several of the new compounds showed subnanomolar activity on hCA II. X-ray crystallography of ligand-hCAII complexes was used to compare the binding modes of the new piperazines and the previously synthesized 2-benzyl-piperazine analogues, explaining the inhibition profiles.
从(R)4-(3,4-二苄基哌嗪-1-羰基)苯磺酰胺9a的分子简化开始,这种化合物具有对人碳酸酐酶(hCA)IV的选择性,是一系列带有4的哌嗪和4-氨基哌啶-氨磺酰基苯甲酰胺部分作为Zn结合基团已设计并在人同工型hCA I,II,IV和IX上进行了测试,并使用了停止流动的CO 2水合酶测定。这项工作的目的是推导可用于设计同工型选择性化合物的结构-活性关系。这些结构修饰将类似物的选择性谱从hCA IV更改为hCA I和II,并提高了效能。几种新化合物对hCA II表现出亚纳摩尔活性。配体-hCAII配合物的X射线晶体学用于比较新哌嗪与先前合成的2-苄基-哌嗪类似物的结合模式,从而解释了抑制曲线。