(α7-nAChR) agonists are promising therapeutic drug candidates for treating the cognitive impairment associated with Alzheimer's disease (AD). Thus, a novel class of derivatives of 1,4-diazobicylco[3.2.2]nonane has been synthesized and evaluated as α7-nAChR ligands. Five of them displayed high binding affinity (Ki = 0.001–25 nM). In particular, the Ki of 14 was 0.0069 nM, which is superior to that of
α7-
烟碱乙酰胆碱受体(α7-nAChR)激动剂是治疗与阿尔茨海默氏病(AD)相关的认知障碍的有前途的治疗药物候选物。因此,已经合成了一类新型的1,4-重氮基二[3.2.2]
壬烷衍
生物,并将其评估为α7-nAChR
配体。其中五个显示出高结合亲和力(K i = 0.001–25 nM)。特别地,K i为14,为0.0069 nM,优于先前报道的最有效
配体的数量级。他们中的四个对α7-nAChRs的选择性比对α4β2-nAChRs的选择性高,并且没有明显的hERG(人类醚去相关
基因)抑制作用。还初步讨论了它们的激动剂活性。其中一种化合物15(Ki = 2.98±1.41 nM),进一步用18 F进行放射性标记,以提供[ 18 F] 15进行PET成像,表现出较高的初始大脑摄取(注射后15分钟时11.60±0.14%ID / g),脑/血值(注射后30分钟时为9.57),α7-nAChRs的