Stereoselective synthesis of unnatural (2S,3S)-6-hydroxy-4-sphingenine-containing sphingolipids

Org Biomol Chem. 2019 Aug 7;17(29):6964-6969. doi: 10.1039/c9ob00990f. Epub 2019 May 28.

Abstract

6-Hydroxy-(4E)-sphingenine-containing sphingolipids are found in mammalian and bacterial membranes and have multiple intra- and intercellular functions. Most sphingolipids contain a (2S,3R)-2-amino-1,3-diol core structure, but only limited examples of unnatural (2S,3S)-2-amino-1,3-diol derivates have so far been reported. Using an underexplored hydrozirconation-transmetalation reaction and an unusual three-step-one-pot deprotection sequence, we were able to synthesize several unnatural (2S,3S)-6-hydroxy-(4E)-sphingenine-containing sphingolipids in only three (protected) or four (deprotected) consecutive steps, respectively, including a fluoresence-labeled derivative suitable for future biological studies.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Molecular Structure
  • Sphingolipids / chemical synthesis*
  • Sphingolipids / chemistry*
  • Sphingosine / analogs & derivatives*
  • Sphingosine / chemistry
  • Stereoisomerism

Substances

  • 6-hydroxy-4-sphingenine
  • Sphingolipids
  • Sphingosine