A General, Concise Strategy that Enables Collective Total Syntheses of over 50 Protoberberine and Five Aporhoeadane Alkaloids within Four to Eight Steps
作者:Shiqiang Zhou、Rongbiao Tong
DOI:10.1002/chem.201601245
日期:2016.5.17
reported. This synthesis represents the most efficient and shortest route to date, featuring three catalytic processes: CuI‐catalyzed redox‐A3 reaction, Pd‐catalyzed reductive carbocyclization, and PtO2‐catalyzed hydrogenation. Importantly, this new strategy to the tetracyclic framework has also been applied to the collective concise syntheses of >30 natural protoberberines (without 13‐methyl group) and
报告了一种简洁,催化和通用的策略,该策略允许在四个步骤中为每个分子高效地合成22种天然13-甲基原小ber碱。该合成代表了迄今为止最有效,最短的路线,具有三个催化过程:CuI催化的氧化还原A 3反应,Pd催化的还原碳环化和PtO 2催化的氢化。重要的是,这种针对四环框架的新策略也已应用于30多种天然原小ber碱(无13-甲基)和5种金刚烷烷生物碱的集体简明合成中。