Thermodynamic Understanding of an Aza-Michael Reaction Enables Five-Step Synthesis of the Potent Integrin Inhibitor MK-0429
作者:Anya Gupta、Matthew L. Condakes
DOI:10.1021/acs.joc.1c02375
日期:2021.12.3
strategy for the aza-Michael addition of nucleophilic heterocycles into β-substituted acrylates using potassium tert-butoxide as catalyst. Demonstrating that the reaction is under thermodynamic control underpins optimization efforts and enables rapid exploration of the substrate scope, with yields ranging from 55% to 94%. We further leverage these lessons in a significantly shortened synthesis of MK-0429
我们描述了使用叔丁醇钾作为催化剂将亲核杂环化合物氮杂迈克尔加成到 β-取代的丙烯酸酯中的一般策略。证明反应处于热力学控制下有助于优化工作,并能够快速探索底物范围,产率从 55% 到 94% 不等。我们进一步利用这些经验教训显着缩短了 MK-0429 的合成,MK-0429 是一种强效的泛整合素抑制剂,之前已用于治疗前列腺癌和骨质疏松症的人体临床试验。