Isolation, structure elucidation, and antioxidant evaluation of cydonioside A, an unusual terpenoid from the fruits of Cydonia vulgaris

Chem Biodivers. 2007 May;4(5):973-9. doi: 10.1002/cbdv.200790088.

Abstract

A novel terpenoid, cydonioside A (1), was isolated from the fruits of Cydonia vulgaris Pers. Its structure and relative configuration were elucidated on the basis of in-depth spectroscopic analyses, including 2D-NMR experiments as well as MM+ calculations. Compound 1 was assayed for its radical-scavenging activity towards the DPPH radical and the superoxide radical anion (O2*-), as well as for its overall antioxidant activity, as assessed by the formation of a phosphomolybdenum complex.

MeSH terms

  • Antioxidants / chemistry*
  • Antioxidants / isolation & purification
  • Cycloheptanes / chemistry*
  • Cycloheptanes / isolation & purification
  • Fruit / chemistry*
  • Glucosides / chemistry*
  • Glucosides / isolation & purification
  • Molecular Structure
  • Plant Extracts
  • Rosaceae / chemistry*

Substances

  • 4-(4-(5-(glucopyranosyloxy)-3,7,7-trimethylcyclohept-2-en-1-ylidene)-3-methylbut-2-enyl)tetrahydro-3,3a,4-trihydroxyfuro(3,4-b)furan-6(4H)-one
  • Antioxidants
  • Cycloheptanes
  • Glucosides
  • Plant Extracts