One-Pot Biocatalytic Synthesis of Substituted<scp>d</scp>-Tryptophans from Indoles Enabled by an Engineered Aminotransferase
作者:Fabio Parmeggiani、Arnau Rué Casamajo、Curtis J. W. Walton、James L. Galman、Nicholas J. Turner、Roberto A. Chica
DOI:10.1021/acscatal.9b00739
日期:2019.4.5
d-Tryptophan and its derivatives are important precursors of a wide range of indole-containing pharmaceuticals and natural products. Here, we developed a one-pot biocatalytic process enabling the synthesis of d-tryptophans from indoles in good yields and high enantiomeric excess (91% to >99%). Our method couples the synthesis of l-tryptophans catalyzed by Salmonella enterica tryptophan synthase with
d-色氨酸及其衍生物是多种含吲哚的药物和天然产物的重要前体。在这里,我们开发了一种一锅式生物催化方法,能够从吲哚以高收率和高对映体过量(91%至> 99%)合成d-色氨酸。我们的方法联接的合成升-tryptophans通过催化肠道沙门氏菌色氨酸合酶与stereoinversion级联介导的变形杆菌myxofaciens升-氨基酸脱氨酶和转氨酶变体,我们工程改造,以显示天然样朝向活动d -色氨酸。我们的方法适用于各种d的制备级合成-在吲哚基团的所有苯环位置含有给电子或吸电子取代基的色氨酸衍生物。