作者:François Saint-Dizier、Nigel S. Simpkins
DOI:10.1039/c6sc05627j
日期:——
enolate substitution and Grignard addition, along with a key bridge-forming step involving a new method for sulfenylative radical cyclisation. The NMR data for synthetic concavine demonstrate that the original data reported for the natural product refer to the derived acetic acid salt, probably formed as an artefact of isolation or purification.
分离自甜瓜(Clitocybe concava)(Basidiomycetae)的不寻常生物碱可卡因的合成已完成。合成路线的特征是通过烯醇盐取代和格利雅加成反应对多环酰亚胺中间体进行区域和立体选择性操纵,以及关键的桥形成步骤,其中涉及新的亚磺酰基自由基环化方法。合成Concavine的NMR数据表明,报道的天然产物的原始数据是指衍生的乙酸盐,可能是分离或纯化的产物。