Mapping the substrate scope of monoamine oxidase (MAO-N) as a synthetic tool for the enantioselective synthesis of chiral amines
作者:Susanne Herter、Florian Medina、Simon Wagschal、Cyril Benhaïm、Friedemann Leipold、Nicholas J. Turner
DOI:10.1016/j.bmc.2017.07.023
日期:2018.4
library of 132 racemic chiral amines (α-substituted methylbenzylamines, benzhydrylamines, 1,2,3,4-tetrahydronaphthylamines (THNs), indanylamines, allylic and homoallylic amines, propargyl amines) was screened against the most versatile monoamine oxidase (MAO-N) variants D5, D9 and D11. MAO-N D9 exhibited the highest activity for most substrates and was applied to the deracemisation of a comprehensive set
针对最通用的单胺氧化酶(MAO-N)筛选了132种外消旋手性胺(α-取代的甲基苄基胺,二苯甲基胺,1,2,3,4-四氢萘胺(THNs),茚满胺,烯丙基和均烯丙基胺,炔丙基胺)的文库)变体D5,D9和D11。MAO-N D9对大多数底物都表现出最高的活性,并被用于脱脂一系列选定的伯胺。在所有情况下,均实现了优异的对映选择性(ee > 99%),产率中等至良好(55-80%)。使用THN作为模板处理底物负载,酶制剂的性质,缓冲液系统,硼烷源和有机助溶剂,可以进一步优化使用MAO-N /硼烷系统对伯胺进行脱氨的条件。