Step-economy synthesis of β-steryl sialosides using a sialyl iodide donor

J Antibiot (Tokyo). 2019 Jun;72(6):449-460. doi: 10.1038/s41429-019-0165-0. Epub 2019 Mar 19.

Abstract

Steryl glycosides are prevalent in nature and have unique biological activities dictated by sterol structure, sugar composition, and the stereochemical attachment of the aglycone. A single configurational switch can have profound biological consequences meriting the systematic study of structure and function relationships. Steryl congeners of N-acetyl neuraminic acid (NANA) impact neurobiological processes and may also mediate host/microbe interactions. In order to study these processes, a platform for the synthesis of β-steryl sialosides has been established. Promoter-free glycosidations using a novel α-linked sialyl iodide donor efficiently provide unique amphiphilic sialoglycoconjugates for examining bioactivities in various systems.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Glycosides / chemistry
  • Iodides / chemical synthesis*
  • Iodides / chemistry
  • Molecular Structure
  • Sialic Acids / chemistry*
  • Sterols / chemistry

Substances

  • Glycosides
  • Iodides
  • Sialic Acids
  • Sterols