New bis-secolabdane diterpenoids from Excoecaria agallocha

J Nat Prod. 2003 Jan;66(1):108-11. doi: 10.1021/np020321j.

Abstract

Two new bis-secolabdane diterpenoids, excoecarins R1 (1) and R2 (2), were isolated from the resinous wood of Excoecaria agallocha. The structures of 1 and 2 were established on the basis of spectroscopic data interpretation and chemical evidence.

MeSH terms

  • Diterpenes / chemistry
  • Diterpenes / isolation & purification*
  • Euphorbiaceae / chemistry*
  • Hydrolysis
  • Japan
  • Molecular Structure
  • Oxidation-Reduction
  • Plant Bark / chemistry
  • Plants, Medicinal / chemistry*
  • Stereoisomerism
  • Wood

Substances

  • Diterpenes
  • excoecarin R1
  • excoecarin R2