Triterpenoids from the stembark of Pyrus communis

Nat Prod Res. 2003 Dec;17(6):459-63. doi: 10.1080/1478641031000149821.

Abstract

Three triterpenoids were isolated from the stem bark of Pyrus communis Linn. and identified as lup-20(29)-ene-3alpha, 27-diol (1), lup-20(29)-ene-3alpha-ol (2) and lup-20(29)-ene-3alpha, 28-diol (3) on the basis of spectral and chemical analysis. The Compound (1) is a novel triterpene, being reported first time by us.

MeSH terms

  • Magnetic Resonance Spectroscopy
  • Pentacyclic Triterpenes
  • Plant Bark / chemistry
  • Pyrus / chemistry*
  • Triterpenes / chemistry
  • Triterpenes / isolation & purification*

Substances

  • Pentacyclic Triterpenes
  • Triterpenes
  • lup-20(29)-ene-3,27-diol
  • betulin
  • lupeol