Functionalization of Fluorinated Benzenesulfonamides and Their Inhibitory Properties toward Carbonic Anhydrases
作者:Virginija Dudutienė、Asta Zubrienė、Alexey Smirnov、David D. Timm、Joana Smirnovienė、Justina Kazokaitė、Vilma Michailovienė、Audrius Zakšauskas、Elena Manakova、Saulius Gražulis、Daumantas Matulis
DOI:10.1002/cmdc.201402490
日期:2015.4
over off‐target CA I and CA II. 3,4‐Disubstituted‐2,5,6‐trifluorobenzenesulfonamides bound CAs with higher affinity than 2,4‐disubstituted‐3,5,6‐trifluorobenzenesulfonamides. Many such fluorinated benzenesulfonamides were found to be nanomolar inhibitors of CA II, CA VII, tumor‐associated CA IX and CA XII, and CA XIII. X‐ray crystal structures of inhibitors bound in the active sites of several CA isoforms
设计,合成和评估了取代的三氟和四氟苯磺酰胺,作为高亲和力和同工型选择性碳酸酐酶(CA)抑制剂。通过荧光热移测定,等温滴定量热法和停止流动的CO 2来确定它们对重组人CA I,II,VA,VI,VII,XII和XIII催化域的结合亲和力水化测定。在2、3和4位上取代基的变化产生具有宽范围结合亲和力和同工型选择性的化合物。几种2,4-取代的-3,5,6-三氟苯磺酰胺是有效的CA XIII抑制剂,对脱靶CA I和CA II具有高选择性。3,4-二取代-2,5,6-三氟苯磺酰胺与CA的亲和力高于2,4-二取代-3,5,6-三氟苯磺酰胺。发现许多此类氟化苯磺酰胺是CA II,CA VII,与肿瘤相关的CA IX和CA XII和CA XIII的纳摩尔抑制剂。结合在几种CA同工型活性位点上的抑制剂的X射线晶体结构为抑制剂结合亲和力和选择性提供了结构-活性关系信息。