Synthesis and Biological Evaluation of 3-Benzisoxazolyl-4-indolylmaleimides as Potent, Selective Inhibitors of Glycogen Synthase Kinase-3β
作者:Qing Ye、Meng Li、Yubo Zhou、Tao Pang、Lei Xu、Jiayi Cao、Liang Han、Yujin Li、Weisi Wang、Jianrong Gao、Jia Li
DOI:10.3390/molecules18055498
日期:——
A series of novel 3-benzisoxazolyl-4-indolyl-maleimides were synthesized and evaluated for their GSK-3β inhibitory activity. Most compounds exhibited high inhibitory potency towards GSK-3β. Among them, compound 7j with an IC50 value of 0.73 nM was the most promising GSK-3β inhibitor. Preliminary structure-activity relationships were examined and showed that different substituents on the indole ring and N1-position of the indole ring had varying degrees of influence on the GSK-3β inhibitory potency. Compounds 7c, 7f, 7j–l and 7o–q could obviously reduce Aβ-induced Tau hyperphosphorylation by inhibiting GSK-3β in a cell-based functional assay.
一系列新型的3-苯并异恶唑基-4-吲哚基-马来酰亚胺被合成并评估了它们对GSK-3β的抑制活性。大多数化合物表现出对GSK-3β的高抑制效力。其中,化合物7j以其0.73 nM的IC50值成为最有潜力的GSK-3β抑制剂。初步的结构-活性关系研究表明,吲哚环上及N1位上的不同取代基对GSK-3β抑制活性有不同程度的影响。化合物7c、7f、7j–l以及7o–q能在基于细胞的功能性检测中明显降低由Aβ诱导的Tau蛋白质过度磷酸化,这是通过抑制GSK-3β实现的。