Isolation and synthesis of analgesic and anti-inflammatory compounds from Ochna squarrosa L

Bioorg Med Chem. 2006 Oct 15;14(20):6820-6. doi: 10.1016/j.bmc.2006.06.048. Epub 2006 Jul 7.

Abstract

Two new furanoflavonoids (1, 2), one new chalcone dimer (3) along with six known compounds, chrysophanol, 5-O-methyl squarrosin, 5-methoxy furano[4'',5'',6,7]flavone, calodenone, lophirone A and lophirone H were isolated from the ethyl acetate-soluble fraction of methanol extract of root bark of Ochna squarrosa. Chrysophanol, calodenone, lophirone A and lophirone H were isolated from this plant for the first time. The structures of all the isolated compounds were confirmed by 1D and 2D spectroscopic data. These compounds were tested for analgesic and anti-inflammatory activity. All the new compounds showed good analgesic and anti-inflammatory activity. A simple and facile method for the cleavage of benzyl ethers using I(2) in trigol is also reported.

MeSH terms

  • Animals
  • Anti-Inflammatory Agents, Non-Steroidal / chemical synthesis*
  • Anti-Inflammatory Agents, Non-Steroidal / isolation & purification*
  • Anti-Inflammatory Agents, Non-Steroidal / pharmacology
  • Biological Assay
  • Drug Evaluation, Preclinical
  • Edema / drug therapy
  • Flavonoids / chemical synthesis*
  • Flavonoids / isolation & purification*
  • Flavonoids / pharmacology
  • Hydrogen Bonding
  • Mice
  • Molecular Structure
  • Ochnaceae / chemistry*
  • Pain Measurement / drug effects
  • Rats
  • Stereoisomerism

Substances

  • Anti-Inflammatory Agents, Non-Steroidal
  • Flavonoids