Three new highly acylated 3,4-seco-grayanane diterpenoids from the fruits of Pieris formosa

Chem Pharm Bull (Tokyo). 2011;59(4):492-5. doi: 10.1248/cpb.59.492.

Abstract

Phytochemical investigation on the fruits of Pieris formosa resulted in the isolation of three new highly acylated 3,4-seco-grayanane diterpenoids, pierisformotoxins E-G (1-3). Their structures were elucidated on the basis of extensive spectroscopic analysis, including 1D-, 2D-NMR, electrospray ionization-mass spectra (ESI-MS) and high resolution (HR)-MS.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Diterpenes / chemistry*
  • Diterpenes / isolation & purification
  • Ericaceae / chemistry*
  • Fruit / chemistry
  • Magnetic Resonance Spectroscopy
  • Molecular Conformation

Substances

  • Diterpenes
  • pierisformotoxin E
  • pierisformotoxin F
  • pierisformotoxin G