Developing a Biocascade Process: Concurrent Ketone Reduction-Nitrile Hydrolysis of 2-Oxocycloalkanecarbonitriles
作者:Elisa Liardo、Nicolás Ríos-Lombardía、Francisco Morís、Javier González-Sabín、Francisca Rebolledo
DOI:10.1021/acs.orglett.6b01510
日期:2016.7.15
cell-catalyzed nitrile hydrolysis in one-pot. The first step, mediated by ketoreductases, involved a dynamic reductive kinetic resolution, which led to 2-hydroxycycloalkanenitriles in very high enantio- and diastereomeric ratios. Then, the simultaneous exposure to nitrile hydratase and amidase from whole cells of Rhodococcus rhodochrous provided the corresponding 2-hydroxycycloalkanecarboxylic acids with excellent
将2-氧代环烷烃腈的立体选择性生物还原反应与一锅内全细胞催化的腈水解反应同时进行。由酮还原酶介导的第一步涉及动态还原动力学拆分,这导致2-羟基环烯基腈的对映体和非对映体比例很高。然后,同时暴露于杜鹃红球菌全细胞的腈水合酶和酰胺酶,为全酶级联反应提供了具有优异的总收率和光学纯度的相应的2-羟基环烷羧酸。