Structure-Based Design and Synthesis of Macroheterocyclic Peptidomimetic Inhibitors of the Aspartic Protease β-Site Amyloid Precursor Protein Cleaving Enzyme (BACE)
作者:Stephen Hanessian、Gaoqiang Yang、Jean-Michel Rondeau、Ulf Neumann、Claudia Betschart、Marina Tintelnot-Blomley
DOI:10.1021/jm060154a
日期:2006.7.1
synthesized in enantiomerically pure form using enzyme-catalyzed desymmetrization and diastereomer separation. Inhibitory activity on beta-site amyloid precursor protein cleaving enzyme (BACE) was observed with several macroheterocyclic inhibitors and structure-activity relationship (SAR) correlations were deduced. Cocrystal structures of two synthetic analogues revealed interesting and unexpected binding
基于Tang-Ghosh七肽抑制剂1(OM00-3)的X射线共晶体结构,设计和合成了一系列大杂环类似物。含二硫杂,二氧杂,氧杂和碳氢化合物大环的类似物通过二恶英类似物的依赖于闭环烯烃复分解的方法合成,而其它则通过硫醇盐或双硫醇盐的烷基化来合成。分子模型表明,大环上附加的哌啶单元的引入通过其他氢键改善了相互作用,并引入了更高的刚性。使用酶催化的脱对称和非对映异构体分离以对映体纯形式合成它们。用几种大杂环抑制剂观察到了对β位淀粉样蛋白前体蛋白裂解酶(BACE)的抑制活性,并推导了结构-活性关系(SAR)的相关性。两种合成类似物的共晶体结构显示出有趣且出乎意料的结合相互作用。