Design and Synthesis of 5,5′-Disubstituted Aminohydantoins as Potent and Selective Human β-Secretase (BACE1) Inhibitors
作者:Michael S. Malamas、Jim Erdei、Iwan Gunawan、Jim Turner、Yun Hu、Erik Wagner、Kristi Fan、Rajiv Chopra、Andrea Olland、Jonathan Bard、Steve Jacobsen、Ronald L. Magolda、Menelas Pangalos、Albert J. Robichaud
DOI:10.1021/jm901414e
日期:2010.2.11
The identification of small molecule aminohydantoins as potent and selective human β-secretase inhibitors is reported. These analogues exhibit low nannomolar potency for BACE1, show comparable activity in a cell-based (ELISA) assay, and demonstrate >100× selectivity for the other structurally related aspartyl proteases BACE2, cathepsinD, renin, and pepsin. On the basis of the cocrystal structure of
报道了鉴定小分子氨基乙内酰脲作为有效的和选择性的人β-分泌酶抑制剂。这些类似物对BACE1表现出低的纳米摩尔效价,在基于细胞的(ELISA)分析中显示出可比的活性,并且对其他结构相关的天冬氨酰蛋白酶BACE2,组织蛋白酶D,肾素和胃蛋白酶显示出大于100倍的选择性。基于BACE1活性位点中HTS-hit 2的共晶体结构,并使用基于结构的药物设计方法,我们系统地探索了BACE1酶的较大结合口袋,并确定了配体与有助于亲和力的蛋白质。一种更有效的化合物(S)-55的IC 50的BACE1值为10 nM,在ELISA分析中显示出可比的细胞活性(EC 50 = 20 nM)。急性口服100 mg / kg的(S)-55导致Tg2576小鼠在8 h时血浆Aβ40降低69%(p <0.001)。