Direct addition of water to alkenes to generate important chiral alcohols as key motif in a variety of natural products still remains a challenge in organic chemistry. Here, we report the first enantioselective artificial metallo-hydratase, based on the transcription factor LmrR, which catalyses the conjugate addition of water to generate chiral β-hydroxy ketones with enantioselectivities up to 84% ee. A mutagenesis study revealed that an aspartic acid and a phenylalanine located in the active site play a key role in achieving efficient catalysis and high enantioselectivities.
直接将
水添加到烯烃中生成重要的手性醇作为各种
天然产物的关键基序仍然是有机
化学中的挑战。在这里,我们报道了第一个基于转录因子 LmrR 的对映选择性人工
金属
水合酶,它催化
水的共轭加成生成手性 β-羟基酮,对映选择性高达 84% ee。诱变研究表明,位于活性位点的
天冬氨酸和苯丙
氨酸在实现高效催化和高对映选择性方面发挥着关键作用。