Total Syntheses of (+)-Alopecuridine, (+)-Sieboldine A, and (−)-Lycojapodine A
作者:Xiao-Ming Zhang、Hui Shao、Yong-Qiang Tu、Fu-Min Zhang、Shao-Hua Wang
DOI:10.1021/jo301545y
日期:2012.9.21
late-stage SmI2-mediated intramolecular coupling to form the 5-membered ring. Subsequently, the biomimetic synthesis of (+)-sieboldine A and (−)-lycojapodine A was accomplished successfully through two different bioinspired oxidations after a wide search for the oxidation methods. As a result, (+)-sieboldine A was derived from (+)-alopecuridine through an N-oxidation/nitrone formation process and (−)-lycojapodine