A Concise Stereoselective Synthesis of the Tetracyclic Naphthoquinone (-)-Isagarin
作者:Rodney A. Fernandes、Arun B. Ingle
DOI:10.1002/ejoc.201101279
日期:2011.11
A concise stereoselective synthesis of the tetracyclic naphthoquinone natural product (-)-isagarin has been completed in seven steps from known alkyne 5 (obtained from D -mannitol) by using Dotz benzannulation and intramolecular stereospecific dioxabicyclic ketal formation as key steps.
通过使用 Dotz 苯环化和分子内立体定向二氧二环缩酮形成作为关键步骤,从已知的炔烃 5(从 D-甘露醇中获得)分七个步骤完成了四环萘醌天然产物 (-)-isagarin 的简洁立体选择性合成。