Dynamic Kinetic Asymmetric Reductive Amination: Synthesis of Chiral Primary β-Amino Lactams
作者:Yazhou Lou、Yutao Hu、Jiaxiang Lu、Fanfu Guan、Gelin Gong、Qin Yin、Xumu Zhang
DOI:10.1002/anie.201809719
日期:2018.10.22
A highly efficient ruthenium‐catalyzed asymmetric reductive amination (ARA) of racemic β‐keto lactams with molecular hydrogen and ammonium salts is disclosed for the synthesis of enantiomerically pure primary amino lactams through dynamic kinetic resolution (DKR). By this approach, a range of syn primary β‐amino lactams were obtained in high yields with high chemo‐, enantio‐, and diastereoselectivity
外消旋β-酮内酰胺与分子氢盐和铵盐的高效钌催化不对称还原胺化(ARA)被公开用于通过动态动力学拆分(DKR)合成对映体纯的伯氨基内酰胺。通过这种方法,以高收率获得了一系列具有高化学,对映体和非对映选择性的顺式β-氨基内酰胺(高达98%收率,99% ee,> 20:1 dr,顺式产物)。该产品的实用性已通过向生物活性药物分子快速获得关键的合成中间体得到了证明。同时,机理研究和控制实验表明,该反应可以通过亚胺中间体的氢化来进行。