Design and synthesis of novel 3,4-dihydrocoumarins as potent and selective monoamine oxidase-B inhibitors with the neuroprotection against Parkinson’s disease
作者:Li Liu、Yi Chen、Rui-Feng Zeng、Yun Liu、Sai-Sai Xie、Jin-Shuai Lan、Yue Ding、Yi-Ting Yang、Jun Yang、Tong Zhang
DOI:10.1016/j.bioorg.2021.104685
日期:2021.4
The monoamine oxidase-B (MAO-B) inhibitors with neuroprotective effects are better for Parkinson's disease (PD) treatment, due to the complicated pathogenesis of PD. To develop new hMAO-B inhibitors with neuroprotection, a novel series of 3,4-dihydrocoumarins was designed as selective and reversible hMAO-B inhibitors to treat PD. Most compounds showed potent and selective inhibition for hMAO-B over
由于帕金森病发病机制复杂,具有神经保护作用的单胺氧化酶-B(MAO-B)抑制剂更适合帕金森病(PD)的治疗。为了开发具有神经保护作用的新型h MAO-B 抑制剂,设计了一系列新型 3,4-二氢香豆素作为选择性和可逆的h MAO-B 抑制剂来治疗 PD。大多数化合物对h MAO-B 显示出比h MAO-A更强的选择性抑制作用,IC 50值范围从纳摩尔到亚纳摩尔。其中,化合物4d是最有效的h MAO-B 抑制剂(IC 50 = 0.37 nM),其活性比异烟肼高约 20783 倍,并且表现出最高的选择性。h MAO-B (SI > 270,270)。动力学研究表明,化合物4d是h MAO-B的可逆和竞争性抑制剂。神经保护研究表明,化合物4d可以保护 PC12 细胞免受 6-OHDA 和鱼藤酮诱导的损伤。此外,化合物4d在高达 2500 mg/kg (po) 的剂量下没有表现出急性毒性,并且可以在平行人工膜渗透性测定中穿过