期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 142, 期 23, 页码 10279-10283出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.0c03428
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资金
- National Science Foundation (NSF) Division of Molecular and Cellular Biosciences [MCB-1513007]
- Joseph J. Jacobs Institute for Molecular Engineering for Medicine
- Deutsche Forschungsgemeinschaft [JI 289/11]
Aliphatic primary amines are prevalent in natural products, pharmaceuticals, and functional materials. While a plethora of processes are reported for their synthesis, methods that directly install a free amine group into C(sp(3))-H bonds remain unprecedented. Here, we report a set of new-to-nature enzymes that catalyze the direct primary amination of C(sp(3))-H bonds with excellent chemo-, regio-, and enantioselectivity, using a readily available hydroxylamine derivative as the nitrogen source. Directed evolution of genetically encoded cytochrome P411 enzymes (P450s whose Cys axial ligand to the heme iron has been replaced with Ser) generated variants that selectively functionalize benzylic and allylic C-H bonds, affording a broad scope of enantioenriched primary amines. This biocatalytic process is efficient and selective (up to 3930 TTN and 96% ee), and can be performed on preparative scale.
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