Functionalized benzophenone, thiophene, pyridine, and fluorene thiosemicarbazone derivatives as inhibitors of cathepsin L
作者:G.D. Kishore Kumar、Gustavo E. Chavarria、Amanda K. Charlton-Sevcik、Grace Kim Yoo、Jiangli Song、Tracy E. Strecker、Bronwyn G. Siim、David J. Chaplin、Mary Lynn Trawick、Kevin G. Pinney
DOI:10.1016/j.bmcl.2010.09.026
日期:2010.11
of thiosemicarbazone analogs based on the benzophenone, thiophene, pyridine, and fluorene molecular frameworks has been prepared by chemical synthesis and evaluated as small-molecule inhibitors of the cysteine proteases cathepsin L and cathepsin B. The two most potent inhibitors of cathepsin L in this series (IC50 <135 nM) are brominated-benzophenone thiosemicarbazone analogs that are further functionalized
已通过化学合成制备了一系列基于二苯甲酮,噻吩,吡啶和芴分子骨架的硫半碳zone类似物,并被评估为半胱氨酸蛋白酶组织蛋白酶L和组织蛋白酶B的小分子抑制剂。组织蛋白酶L的两种最有效抑制剂该系列(IC 50 <135 nM)是溴化二苯甲酮硫半碳酸盐类似物,可通过酚类部分(2和6)进一步官能化。此外,溴-二苯甲酮硫半脲酮乙酰衍生物(3)也强烈抑制组织蛋白酶L(IC 50 = 150.8 nM)。噻吩系列中的溴取代导致仅显示出对组织蛋白酶L的中等抑制作用的化合物。二苯甲酮硫代半碳环酮系列中两个活性最高的类似物对组织蛋白酶L的抑制比对组织蛋白酶B的选择性高。