A Concise Total Synthesis of Steroid Scaffolds via a Palladium-Catalyzed Dearomatization Cyclization
作者:Lei Guo、Wenjun Tang、Zhangwei Huang、Xianhua Pan
DOI:10.1055/s-0042-1751356
日期:2022.10
A concise total synthesis to generate synthetically challenging steroids scaffolds is reported utilizing palladium-catalyzed dearomatization cyclization for the key cyclization step, enabling the divergent synthesis of 6,6,6,5-tetracyclic steroids cores through both ligand and reaction condition control. We have started from the simple starting materials 2,4,6-trihydroxybenzoic acid and 2-methylcyclopentane-1
据报道,利用钯催化的脱芳构化环化进行关键环化步骤,生成具有合成挑战性的类固醇支架的简明全合成方法,通过配体和反应条件控制实现了 6,6,6,5-四环类固醇核心的不同合成。我们从简单的起始材料 2,4,6-三羟基苯甲酸和 2-甲基环戊烷-1,3-二酮开始,通过 12 步操作选择性地生成复杂的类固醇支架。