Novel pyrrolyl 2-aminopyridines as potent and selective human β-secretase (BACE1) inhibitors
作者:Michael S. Malamas、Keith Barnes、Yu Hui、Matthew Johnson、Frank Lovering、Jeff Condon、William Fobare、William Solvibile、Jim Turner、Yun Hu、Eric S. Manas、Kristi Fan、Andrea Olland、Rajiv Chopra、Jonathan Bard、Menelas N. Pangalos、Peter Reinhart、Albert J. Robichaud
DOI:10.1016/j.bmcl.2010.02.075
日期:2010.4
The proteolytic enzyme β-secretase (BACE1) plays a central role in the synthesis of the pathogenic β-amyloid in Alzheimer’s disease. Recently, we reported small molecule acylguanidines as potent BACE1 inhibitors. However, many of these acylguanidines have a high polar surface area (e.g. as measured by the topological polar surface area or TPSA), which is unfavorable for crossing the blood–brain barrier
蛋白水解酶β-分泌酶(BACE1)在阿尔茨海默氏病的致病性β-淀粉样蛋白的合成中起着核心作用。最近,我们报道了小分子酰基胍作为有效的BACE1抑制剂。但是,这些酰基胍中的许多具有高极性表面积(例如,通过拓扑极性表面积或TPSA测量),这不利于穿越血脑屏障。在本文中,我们描述了将2-氨基吡啶部分鉴定为酰基胍基团的生物立体替代物,这导致抑制剂具有较低的TPSA值和优异的脑渗透性。X射线晶体学研究表明2-氨基吡啶部分通过氢键网络与催化天冬氨酸Asp32和Asp228直接相互作用。