Notes
New 3,4-seco-Grayanane Diterpenoids from the Flowers of Pieris japonica
2016 Volume 64 Issue 8 Pages 1222-1225
Details
2016 Volume 64 Issue 8 Pages 1222-1225
Three new 3,4-seco-grayanane diterpenoids, neopierisoids D–F (2–4), and a new natural one, neopierisoid C (1), were isolated from the flowers of Pieris japonica. Their structures were elucidated on the basis of extensive spectroscopic analysis, including one and two dimensional (1- and 2D)-NMR, as well as high resolution-electron ionization (HR-EI)-MS.
