The concise synthesis of chalcone, indanone and indenone analogues of combretastatin A4

Bioorg Med Chem. 2007 May 1;15(9):3290-8. doi: 10.1016/j.bmc.2007.02.006. Epub 2007 Feb 11.

Abstract

A series of aryl- and aroyl-substituted chalcone analogues of the tubulin binding agent combretastatin A4 (1) were prepared, using a recently introduced one-pot palladium-mediated hydrostannylation-coupling reaction sequence. These chalcones were converted to indanones by Nazarov cyclisation, followed by oxidation to give the corresponding indenones. Indenones were also prepared using a palladium-mediated formal [3+2]-cycloaddition process between ortho-halobenzaldehydes and diarylpropynones. All compounds were assessed as inhibitors of tubulin polymerisation, but only E-31 had activity similar to that of 1. However, compound E-31 did not exhibit antiproliferative activity against the MCF-7 cell line.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Animals
  • Brain
  • Cattle
  • Cell Line, Tumor
  • Cell Proliferation / drug effects
  • Chalcone / chemical synthesis*
  • Chalcone / chemistry
  • Chalcone / pharmacology
  • Drug Screening Assays, Antitumor
  • Humans
  • Indans / chemical synthesis*
  • Indans / chemistry
  • Indans / pharmacology
  • Indenes / chemical synthesis*
  • Indenes / chemistry
  • Indenes / pharmacology
  • Molecular Structure
  • Stereoisomerism
  • Stilbenes / chemistry*
  • Structure-Activity Relationship
  • Tubulin / drug effects

Substances

  • Indans
  • Indenes
  • Stilbenes
  • Tubulin
  • Chalcone
  • indacrinone
  • fosbretabulin