作者:Du, Wen-Rong、Wei, Ben-Ben、Guo, Xin-Yuan、Lan, Yong、Shang, Pan-Pan、Wang, Yi-Xuan、Zhou, Xue-Wei、Wang, Xiao-Ke、Ma, Zheng-Yue
DOI:10.1007/s00044-024-03298-w
日期:——
A series of 8-(piperazin-1-yl)imidazo[1,2-a]pyrazine derivatives were designed and synthesized as acetylcholinesterase inhibitors (AChEIs) and antioxidants for the treatment of Alzheimer’s disease (AD). Moreover, the biological evaluation results demonstrated that these synthesized compounds exhibited moderate inhibitory activities toward acetylcholinesterase (AChE) and radical scavenging activities
设计并合成了一系列8-(哌嗪-1-基)咪唑并[ 1,2-a ]吡嗪衍生物作为乙酰胆碱酯酶抑制剂(AChEI)和抗氧化剂,用于治疗阿尔茨海默病(AD)。此外,生物学评价结果表明,这些合成的化合物对乙酰胆碱酯酶(AChE)具有中等的抑制活性和自由基清除活性。其中,化合物17r是最有效的AChE抑制剂,IC 50值为0.47 μM,对丁酰胆碱酯酶(BuChE)具有中等抑制活性(IC 50 = 11.02 μM)。 AChE相对于BuChE的选择性指数(SI)值为23.45,超过了参比药加兰他敏(AChE IC 50 = 5.01 μM,BuChE IC 50 = 18.46 μM,SI = 3.68)。化合物17o的抗氧化活性最好,IC 50值为89.33 μM,低于对照药物抗坏血酸(IC 50值=25.70 μM)。此外,分子对接研究结果表明, 17r可以同时结合AChE的催化活性位点和外周阴