Two new xanthones from Artocarpus obtusus

J Asian Nat Prod Res. 2010 Feb;12(2):106-12. doi: 10.1080/10286020903450411.

Abstract

Two new xanthones, pyranocycloartobiloxanthone A (1) and dihydroartoindonesianin C (2), were isolated from the stem bark of Artocarpus obtusus Jarrett by chromatographic separation. Their structures were determined by using spectroscopic methods and comparison with known related compounds. Pyranocycloartobiloxanthone A (1) showed strong free radical scavenging activity by using DPPH assay as well as cytotoxicity towards K562, HL-60, and MCF7 cell lines.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Artocarpus / chemistry*
  • Biphenyl Compounds / pharmacology
  • Drug Screening Assays, Antitumor
  • Free Radical Scavengers / chemistry
  • Free Radical Scavengers / isolation & purification*
  • Free Radical Scavengers / pharmacology
  • Malaysia
  • Molecular Structure
  • Nuclear Magnetic Resonance, Biomolecular
  • Picrates / pharmacology
  • Plant Bark / chemistry
  • Plants, Medicinal / chemistry*
  • Xanthones / chemistry
  • Xanthones / isolation & purification*
  • Xanthones / pharmacology

Substances

  • Biphenyl Compounds
  • Free Radical Scavengers
  • Picrates
  • Xanthones
  • dihydroartoindonesianin C
  • pyranocycloartobiloxanthone A
  • 1,1-diphenyl-2-picrylhydrazyl