Synthesis of the fully glycosylated cyclohexenone core of lomaiviticin A

Org Lett. 2009 Oct 1;11(19):4322-5. doi: 10.1021/ol901710b.

Abstract

We describe two four-step sequences for conversion of the inexpensive reagent ethyl sorbate to either O-allyl-N,N-dimethyl-D-pyrrolosamine or O-allyl-L-oleandrose, protected forms of the 2,6-dideoxy sugar residues found in the complex bacterial metabolite lomaiviticin A. We also report a gram-scale synthesis of the highly-oxygenated cyclohexenone ring of this metabolite, and show this may be coupled with the aforementioned donors to form the bis(glycoside) 6. The longest linear sequence to 6 is nine steps.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cyclohexanones / chemical synthesis*
  • Cyclohexanones / chemistry
  • Fluorenes / chemical synthesis*
  • Fluorenes / chemistry
  • Glycosylation
  • Molecular Structure
  • Stereoisomerism

Substances

  • Cyclohexanones
  • Fluorenes
  • lomaiviticin A