SAR studies of o-hydroxychalcones and their cyclized analogs and study them as novel inhibitors of cathepsin B and cathepsin H
作者:N. Raghav、S. Garg
DOI:10.1016/j.ejps.2014.04.006
日期:2014.8
potent inhibitors among the three series were nitro substituted compounds 1g, 2g and 3g with Ki values of approximately 6.18x10(-8) M, 4.8x10(-7) M and 7.85x10(-7) M for cathepsin B and Ki values of approximately 2.8x10(-7) M, 31.8x10(-6) M and 33.7x10(-6) M for cathepsin H, respectively. The relationship between chalcone, flavanones and flavone structures interpreted by docking studies on cathepsin
组织蛋白酶已成为抗癌药物开发的潜在靶标。在本研究中,我们合成了3个结构相关的类黄酮系列,即2'-羟基查耳酮,黄烷酮和黄酮,并进行了体外分析,以研究其对组织蛋白酶B和H的抑制作用,这是有望用于癌症治疗的药物。在对内源蛋白质底物进行初步蛋白水解研究之后,在这些化合物的存在下进行了酶动力学研究。SAR研究表明,与环化类似物相比,开链黄酮类化合物是更好的抑制剂。这三个系列中最有效的抑制剂是硝基取代的化合物1g,2g和3g,其组织蛋白酶B和Ki的Ki值分别约为6.18x10(-8)M,4.8x10(-7)M和7.85x10(-7)M。值约为2.8x10(-7)M,31。组织蛋白酶H分别为8x10(-6)M和33.7x10(-6)M。组织蛋白酶B和H的对接研究解释了查尔酮,黄烷酮和黄酮结构之间的关系,也提供了有用的见解。