Via intramolecular C-H insertion of N-cumyl α-diazo acetamides, γ-lactams were efficiently synthesized with excellent regioselectivity. A concise route for the preparation of pregabalin (79% overall yield) and 3-benzyloxy pyrrolidine (21% overall yield) were reported.
通过 N-cumyl δ±-重氮乙酰胺的分子内 C-H 插入,以优异的区域选择性高效合成了δ-内酰胺。报告了制备
普瑞巴林(总收率 79%)和
3-苄氧基吡咯烷(总收率 21%)的简明路线。