Synthetic Study toward Saccharomicin Based upon Asymmetric Metal Catalysis

Org Lett. 2021 Aug 6;23(15):5969-5972. doi: 10.1021/acs.orglett.1c02060. Epub 2021 Jul 22.

Abstract

Here, we report a de novo metal-catalyzed approach toward the stereoselective glycosidic bond formation in saccharomicin. The signature step is highlighted by the Pd-catalyzed asymmetric coupling of ene-alkoxyallenes and highly functionalized alcohol substrates. The reaction showed high chemo-, regio-, and ligand-driven diastereoselectivity. In combination with the ring-closing metathesis and late-stage functionalization, this method led to highly efficient synthesis of saccharosamine-rhamnose and rhamnose-fucose fragments.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Catalysis
  • Fucose / chemical synthesis*
  • Fucose / chemistry
  • Hexosamines / chemical synthesis*
  • Hexosamines / chemistry
  • Molecular Structure
  • Palladium / chemistry
  • Rhamnose / chemistry*

Substances

  • Hexosamines
  • Fucose
  • vancosamine
  • Palladium
  • Rhamnose