New azepino[4,3-b]indole derivatives as nanomolar selective inhibitors of human butyrylcholinesterase showing protective effects against NMDA-induced neurotoxicity
作者:Modesto de Candia、Giorgia Zaetta、Nunzio Denora、Domenico Tricarico、Maria Majellaro、Saverio Cellamare、Cosimo D. Altomare
DOI:10.1016/j.ejmech.2016.09.037
日期:2017.1
Several 6-substituted 3,4,5,6-tetrahydroazepino[4,3-b]indol-1(2H)-one (THAI) derivatives were synthesized and evaluated for their activity as cholinesterase (ChE) inhibitors. The most potent inhibitors were identified among 6-(2-phenylethyl)-THAI derivatives, and in particular compounds 12b and 12d proved to be very active against human BChE (IC50 = 13 and 1.8 nM, respectively), with 1000-fold selectivity
合成了几种6-取代的3,4,5,6-四氢氮杂环庚烷[4,3- b ]吲哚-1(2 H)-one(THAI)衍生物,并评估了其作为胆碱酯酶(ChE)抑制剂的活性。在6-(2-苯乙基)-THAI衍生物中鉴定出最有效的抑制剂,特别是化合物12b和12d被证明对人类BChE具有非常高的活性(分别为IC 50 = 13和1.8 nM),具有1000倍的选择性超过AChE。构效关系突出了关键特征(例如环融合[4,3- b],内酰胺CONH功能的完整性)和6-(2-苯乙基)基团的有利物理化学性质(即,苯基取代基的最佳位置,大小和亲脂性)。还评估了许多化合物对NMDA诱导的SH-SY5Y神经元细胞损伤的作用。用12b处理可提高用250μMNMDA预处理的SH-SY5Y细胞的细胞活力, 在0.5至5μM的浓度下具有显着影响(P <0.05)。这些发现表明,THAI可以用作开发用于治疗阿尔茨海默氏型神经变性综合征的新药物的支架。