Chemoenzymatic Synthesis of Substituted Azepanes by Sequential Biocatalytic Reduction and Organolithium-Mediated Rearrangement
作者:Wojciech Zawodny、Sarah L. Montgomery、James R. Marshall、James D. Finnigan、Nicholas J. Turner、Jonathan Clayden
DOI:10.1021/jacs.8b11891
日期:2018.12.26
Enantioenriched 2-aryl azepanes and 2-arylbenzazepines were generated biocatalytically by asymmetric reductive amination using imine reductases or by deracemization using monoamine oxidases. The amines were converted to the corresponding N'-aryl ureas, which rearranged on treatment with base with stereospecific transfer of the aryl substituent to the 2-position of the heterocycle via a configurationally