Total Synthesis of Denbinobin

J Nat Prod. 2016 Apr 22;79(4):1170-3. doi: 10.1021/acs.jnatprod.5b00959. Epub 2016 Mar 24.

Abstract

A total synthesis of denbinobin (1) in seven steps with an overall yield of 10% is reported. This synthesis used an FeCl3-assisted cyclization of stilbene to form a phenanthrene. The poor yields of the decarboxylation and methoxylation steps were improved upon to become essentially quantitative. This scalable methodology was carried out using ordinary laboratory reagents.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anthraquinones / chemical synthesis*
  • Anthraquinones / chemistry
  • Anthraquinones / pharmacology
  • Antineoplastic Agents, Phytogenic / chemical synthesis*
  • Antineoplastic Agents, Phytogenic / chemistry
  • Antineoplastic Agents, Phytogenic / pharmacology
  • Apoptosis / drug effects
  • Chlorides / chemistry
  • Cyclization
  • Ferric Compounds / chemistry
  • Molecular Structure
  • Phenanthrenes / chemical synthesis*
  • Phenanthrenes / chemistry
  • Phenanthrenes / pharmacology

Substances

  • Anthraquinones
  • Antineoplastic Agents, Phytogenic
  • Chlorides
  • Ferric Compounds
  • Phenanthrenes
  • denbinobin
  • ferric chloride