Discovery of novel and potent safinamide-based derivatives as highly selective hMAO-B inhibitors for treatment of Parkinson's disease (PD): Design, synthesis, in vitro, in vivo and in silico biological studies
作者:Ahmed Elkamhawy、Sora Paik、Jong-Hyun Park、Hyeon Jeong Kim、Ahmed H.E. Hassan、Kyeong Lee、Ki Duk Park、Eun Joo Roh
DOI:10.1016/j.bioorg.2021.105233
日期:2021.10
enzyme − inhibitor interactions and a rational for the observed activity. In an in vivo MPTP-induced mouse model of PD, oral administration of compound 4bf significantly protected nigrostriatal dopaminergic neurons as revealed by tyrosine hydroxylase staining and prevented MPTP-induced Parkinsonism as revealed by motor behavioral assays. Accordingly, we present compound 4bf as a novel, highly potent, and
迄今为止,目前的临床实践仅采用对症治疗来管理帕金森病(PD),但无法阻止疾病进展。发现具有强效和选择性人单胺氧化酶 B ( h MAO-B) 抑制活性的新化学实体是临床相关主题。在此,safinamide(一种众所周知的第二代h MAO-B 抑制剂)的结构优化策略提供了一系列 36 种 safinamide 衍生的新类似物(4aa – bj)。大多数化合物显示有希望的对抗抑制活性ħ MAO-B(> 70%抑制在10μM的单一剂量浓度),与上没有明显效果ħ100 μM 的 MAO-A。此外,虽然六种化合物(4ak、4as、4az、4be、4bg和4bi)在h MAO-B 上表现出有效的两位数纳摩尔活性,IC 50值为29.5、42.2、22.3、18.8、42.2和33M。分别具有相同羧酰胺部分(2-吡嗪基)的三种衍生物(4aq、4at和4bf)显示出最有效的单位数纳摩尔活性(IC 50分别为9