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

Fei Zhao, Kate Lauder, Siyu Liu, James D. Finnigan, Simon J. Charnock, Simon J. Charnock, Daniele Castagnolo*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

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.

Original languageEnglish
Article numbere202202363
JournalAngewandte Chemie - International Edition
Volume61
Issue number31
DOIs
Publication statusPublished - 1 Aug 2022

Keywords

  • Biocatalysis
  • Chemoenzymatic Cascades
  • Dynamic Kinetic Resolution
  • Ketoreductase
  • β-Hydroxysulfides

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