An Efficient Synthesis of Optically Active [4-13C] Labelled Quorum Sensing Signal Autoinducer-2

Molecules. 2021 Jan 12;26(2):369. doi: 10.3390/molecules26020369.

Abstract

A new synthetic route for the quorum sensing signal Autoinducer-2 (AI-2) is described and used for the preparation of [4-13C]-AI-2 starting from [1-13C]-bromoacetic acid. The key step in this process was the enantioselective reduction of an intermediate ketone. This synthesis provides, selectively, both enantiomers of the labelled or unlabelled parent compound, (R) or (S)-4,5-dihydroxypentane-2,3-dione (DPD) and was used for an improved synthesis of [1-13C]-AI-2.

Keywords: 13C-DPD; AI-2; DPD; enantioselective synthesis; quorum sensing.

MeSH terms

  • Cyclization
  • Homoserine / analogs & derivatives*
  • Homoserine / chemical synthesis
  • Homoserine / pharmacology
  • Lactones / chemical synthesis*
  • Lactones / pharmacology*
  • Optical Phenomena*
  • Quorum Sensing* / drug effects

Substances

  • Lactones
  • N-octanoylhomoserine lactone
  • Homoserine