A technique has been proposed for incorporating a heterocyclic component into a glutarimide framework employing a Rh2(esp)2-catalyzed N–H insertion with the involvement of N-Boc-α-diazo glutarimide. The new diazo reagent is more stable, soluble and convenient to prepare than the previously suggested one. The approach permits the application of diverse heterocycles, including both aromatic and saturated NH-substrates. This yields structures that are appealing for generating cereblon ubiquitin-ligase ligands and for potential use in crafting PROTAC molecules.
在 N-Boc-α- 重氮戊二酰亚胺的参与下,提出了一种利用 Rh2(esp)2 催化 N-H 插入将杂环成分加入戊二酰亚胺框架的技术。与之前建议的试剂相比,新的重氮试剂更稳定、更易溶、更易于制备。这种方法允许应用各种杂环,包括芳香族和饱和 NH-基质。这样得到的结构对生成脑龙泛素连接酶配体和潜在的 PROTAC 分子工艺很有吸引力。