作者:Mohamed Medjahdi、José C. González-Gómez、Francisco Foubelo、Miguel Yus
DOI:10.1002/ejoc.201100091
日期:2011.4
presents an application of two recently developed methodologies to the synthesis of naturally occurring (–)-aphanorphine. The first method involves an indium-mediated stereoselective α-aminoallylation of aldehydes to prepare enantioenriched homoallylic amine derivatives. The second is the epoxidation and regioselective opening of the epoxide to afford 2-substituted 3-pyrrolidinols. The synthesis was completed
本文介绍了两种最近开发的方法在天然存在的 (-)-aphanorphine 合成中的应用。第一种方法涉及醛的铟介导立体选择性α-氨基烯丙基化,以制备对映体富集的高烯丙基胺衍生物。第二个是环氧化物的环氧化和区域选择性打开以提供 2-取代的 3-吡咯烷醇。合成是通过使用报道的 Friedel-Crafts 烷基化和传统的官能团操作完成的。按照同样的路线,由(S)-2-甲基丙烷-2-亚磺酰胺制备了非天然(+)-aphanorphine的O-甲基衍生物。