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Chemoenzymatic Cascades for the Enantioselective Synthesis of β-Hydroxysulfides Bearing a Stereocentre at the C−O or C−S Bond by Ketoreductases

Zhao, Fei; Lauder, Kate; Liu, Siyu; Finnigan, James D; Charnock, Simon BR; Charnock, Simon J; Castagnolo, Daniele; (2022) Chemoenzymatic Cascades for the Enantioselective Synthesis of β-Hydroxysulfides Bearing a Stereocentre at the C−O or C−S Bond by Ketoreductases. Angewandte Chemie International Edition , 61 (31) , Article e202202363. 10.1002/anie.202202363. Green open access

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Abstract

Chiral β-hydroxysulfides are an important class of organic compounds which find broad application in organic and pharmaceutical chemistry. Herein we describe the development of novel biocatalytic and chemoenzymatic methods for the enantioselective synthesis of β-hydroxysulfides by exploiting ketoreductase (KRED) enzymes. Four KREDs were discovered from a pool of 384 enzymes identified and isolated through a metagenomic approach. KRED311 and KRED349 catalysed the synthesis of β-hydroxysulfides bearing a stereocentre at the C-O bond with opposite absolute configurations and excellent ee values by novel chemoenzymatic and biocatalytic-chemical-biocatalytic (bio-chem-bio) cascades starting from commercially available thiophenols/thiols and α-haloketones/alcohols. KRED253 and KRED384 catalysed the enantioselective synthesis of β-hydroxysulfides bearing a stereocentre at the C-S bond with opposite enantioselectivities by dynamic kinetic resolution (DKR) of racemic α-thioaldehydes.

Type: Article
Title: Chemoenzymatic Cascades for the Enantioselective Synthesis of β-Hydroxysulfides Bearing a Stereocentre at the C−O or C−S Bond by Ketoreductases
Location: Germany
Open access status: An open access version is available from UCL Discovery
DOI: 10.1002/anie.202202363
Publisher version: https://doi.org/10.1002/anie.202202363
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Biocatalysis, ketoreductase, β-hydroxysulfides, dynamic kinetic resolution, chemoenzymatic cascades
UCL classification: UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL
URI: https://discovery.ucl.ac.uk/id/eprint/10149196
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