AbstractChiral β‐aryl propanamine is an important structure unit of bioactive molecules or drugs. But its efficient synthesis remains a challenging task. In this study, several enantiocomplementary imine reductases capable of dynamic kinetic resolution‐reductive amination of sixteen 2‐phenylpropanal derivatives of diverse structural characteristics with four different amines were identified through screening 196 imine reductases. Furthermore, (S)‐IR60, (R)‐IR74 and (R)‐IR207 were applied to access a series of different β‐aryl propanamines with excellenteevalues (90 to 99 %) and high isolated yields (36 to 79 %), and two of them were further transformed into 3‐methylindolines through intramolecular Buchwald‐Hartwig cross‐coupling and deallylation, providing an effective method to construct this class of pharmaceutically important compounds.
摘要手性β-芳基丙胺是生物活性分子或药物的重要结构单元。但其高效合成仍是一项具有挑战性的任务。本研究通过筛选 196 种亚胺还原酶,发现了几种对映体互补的亚胺还原酶,它们能够对 16 种具有不同结构特征的 2-苯基丙醛衍生物与 4 种不同的胺进行动态动力学解析-还原胺化反应。此外,(S)-IR60、(R)-IR74 和(R)-IR207 被用于获得一系列不同的 β-芳基丙胺,它们具有极佳的产率(90% 至 99%)和较高的分离产率(36% 至 79%),其中两种还通过分子内 Buchwald-Hartwig 交叉偶联和脱烯丙基转化为 3-甲基吲哚,为构建这一类具有重要药用价值的化合物提供了有效的方法。