Design, synthesis, and biological evaluation of isoquinolin-1(2H)-one derivates as tankyrase-1/2 inhibitors
作者:MO, JIANGWEN、PENG, YAN、WANG, YANYAN、WANG, ZHU、YAO, HAIPING
DOI:10.1691/ph.2021.0904
日期:——
To investigate structure-activity relationships of tankyrase (TNKS) inhibitors, twelve new derivatives of isoquinolin-1(2 H )-one were designed and synthesized, and biological assessments were conducted. Several potent TNKS inhibitors with single- or double-digit nanomolar IC50 values were identified using enzymatic assays. Compound 11c was the most potent compound of this series and inhibited TNKS1 and TNKS2 at an IC50 of 0.009 and 0.003 μM, respectively, and showed an IC50 of 0.029 μM in a DLD-1 SuperTopFlash assay. Molecular docking results showed that compound 11c occupied a unique subpocket and formed a hydrogen bond with Glu1138 of TNKS2, which was not consistent with the patterns of known TNKS inhibitors and thus warrants further research.
为了研究端锚酶(TNKS)抑制剂的结构-活性关系,设计并合成了十二种新的异喹啉-1(2H)-酮衍生物,并进行了生物活性评估。通过酶学检测法鉴定出几种具有单或双数纳摩尔IC50值的强效TNKS抑制剂。化合物11c是该系列中最强效的化合物,分别以0.009和0.003 μM的IC50值抑制TNKS1和TNKS2,并在DLD-1 SuperTopFlash检测中显示0.029 μM的IC50值。分子对接结果显示,化合物11c占据了一个独特的子口袋,并与TNKS2的Glu1138形成了氢键,这与已知的TNKS抑制剂模式不符,因此值得进一步研究。