Anhydrous and Stereoretentive Fluoride-Enhanced Suzuki–Miyaura Coupling of Immunomodulatory Imide Drug Derivatives
作者:William F. Tracy、Geraint H. M. Davies、Lauren N. Grant、Jacob M. Ganley、Jesus Moreno、Emily C. Cherney、Huw M. L. Davies
DOI:10.1021/acs.joc.3c02873
日期:2024.4.5
Immunomodulatory imide drugs form the core of many pharmaceutically relevant structures, but Csp2–Csp2 bond formation via metal-catalyzed cross coupling is difficult due to the sensitivity of the glutarimide ring ubiquitous in these structures. We report that replacement of the traditional alkali base with a fluoride source enhances a previously challenging Suzuki–Miyaura coupling on glutarimide-containing
免疫调节酰亚胺药物形成了许多药学相关结构的核心,但由于这些结构中普遍存在的戊二酰亚胺环的敏感性,通过金属催化交叉偶联形成 C sp 2 –C sp 2键很困难。我们报告说,用氟化物源替代传统的碱基增强了先前具有挑战性的含戊二酰亚胺化合物与三氟硼酸盐的铃木-宫浦偶联。这些有利条件的反应性足以以高产率生成这些衍生物,但又足够温和以保留戊二酰亚胺及其敏感的立体中心。实验和计算数据表明,在这些条件下,三氟硼酸盐发生了机械上不同的 π 配位过程。