Discovery of 7-Tetrahydropyran-2-yl Chromans: β-Site Amyloid Precursor Protein Cleaving Enzyme 1 (BACE1) Inhibitors That Reduce Amyloid β-Protein (Aβ) in the Central Nervous System
作者:Allen A. Thomas、Kevin W. Hunt、Matthew Volgraf、Ryan J. Watts、Xingrong Liu、Guy Vigers、Darin Smith、Douglas Sammond、Tony P. Tang、Susan P. Rhodes、Andrew T. Metcalf、Karin D. Brown、Jennifer N. Otten、Michael Burkard、April A. Cox、Mary K. Geck Do、Darrin Dutcher、Sumeet Rana、Robert K. DeLisle、Kelly Regal、Albion D. Wright、Robert Groneberg、Kimberly Scearce-Levie、Michael Siu、Hans E. Purkey、Joseph P. Lyssikatos、Indrani W. Gunawardana
DOI:10.1021/jm401635n
日期:2014.2.13
In an attempt to increase selectivity vs Cathepsin D (CatD) in our BACE1 program, a series of 1,3,4,4a,10,10a-hexahydropyrano[4,3-b]chromene analogues was developed. Three different Asp-binding moieties were examined: spirocyclic acyl guanidines, aminooxazolines, and aminothiazolines in order to modulate potency, selectivity, efflux, and permeability. Using structure-based design, substitutions to
为了在我们的BACE1程序中提高相对于组织蛋白酶D(CatD)的选择性,开发了一系列1,3,4,4a,10,10a-六氢吡喃并[4,3-b]色烯类似物。检查了三个不同的Asp结合部分:螺环酰基胍,氨基恶唑啉和氨基噻唑啉,以调节效能,选择性,外排和渗透性。使用基于结构的设计,探索了改善与BACE1的S3和S2'位的结合的取代基。酰基胍部分提供了最有效的类似物。这些化合物对BACE1相对于CatD具有10-420倍的选择性,并且在测量Aβ1-40产生(5-99 nM)的细胞分析中具有很高的效力。他们还遭受外排率高的困扰。尽管有这种不良特性,但仍有两个酰基胍达到了游离脑浓度(C免费,脑)在豚鼠PD模型足以满足他们的细胞IC 50秒。此外,对于化合物62,豚鼠,大鼠和食蟹猴CSF中的Aβ1–40显着降低(分别为58%,53%和63%)。