作者:Zhe Lv、Zining Li、Guangxin Liang
DOI:10.1021/ol500308e
日期:2014.3.21
A concise total synthesis of mersicarpine is achieved by exploiting a cyclic carbamate for generation of a tertiary carbocation. The key step involves intramolecular Friedel–Crafts alkylation with this carbocation for the construction of a quaternary carbon center and a subsequent oxidation and cyclization cascade for the formation of a seven-membered cyclic imine. The chemistry allowed for a rapid
通过利用环状氨基甲酸酯生成叔碳正离子,可以实现简明的美西卡因全合成。关键步骤涉及用该碳正离子进行分子内Friedel-Crafts烷基化反应以构建季碳中心,随后进行氧化和环化级联反应以形成七元环亚胺。该化学方法允许使用简单的化学操作从简单的中间体快速一锅法合成美西卡平。