Fluorosulfate-containing pyrazole heterocycles as selective BuChE inhibitors: structure-activity relationship and biological evaluation for the treatment of Alzheimer’s disease
作者:Huan-Huan Li、Chengyao Wu、Shi-Long Zhang、Jian-Guo Yang、Hua-Li Qin、Wenjian Tang
DOI:10.1080/14756366.2022.2103553
日期:2022.12.31
Abstract Novel scaffolds are expected to treat Alzheimer’s disease, pyrazole-5-fluorosulfates were found as selective BuChE inhibitors. Compounds K1–K26 were assayed for ChE inhibitory activity, amongst them, compound K3 showed potent BuChE and hBuChE inhibition (IC50 = 0.79 μM and 6.59 μM). SAR analysis showed that 1-, 3-, 4-subtituent and 5-fluorosulfate of pyrazole ring affected BuChE inhibitory
摘要 新型支架有望治疗阿尔茨海默病,发现 pyrazole-5-fluorosulfate 作为选择性 BuChE 抑制剂。对化合物K1-K26的 ChE 抑制活性进行了测定,其中,化合物K3显示出有效的 BuChE 和h BuChE 抑制作用(IC 50 = 0.79 μM 和 6.59 μM)。SAR分析表明吡唑环的1-、3-、4-取代基和5-氟硫酸盐影响BuChE抑制活性。分子对接表明,氟硫酸盐通过π-硫相互作用增加了h BuChE的结合亲和力。化合物K3是一种可逆的、混合的、非竞争性的 BuChE 抑制剂(K i= 0.77 μM)并显示出显着的神经保护作用、安全的毒理学特征和 BBB 渗透。体内行为研究表明,K3治疗改善了 A β 1 - 42诱导的认知障碍,并显着阻止了 A β 1 - 42毒性的影响。因此,选择性 BuChE 抑制剂K3具有作为 AD 治疗剂进一步开发的潜力。