Related Experiment Video
Updated: Jun 3, 2026

High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
A new diterpenoid glucoside and two new diterpenoids from the fruit of Vitex agnus-castus
Masateru Ono1, Keisuke Eguchi, Masatarou Konoshita
1School of Agriculture, Tokai University, Kumamoto, Japan. mono@agri.u-tokai.ac.jp
Abstract:
A new labdane-type diterpenoid glucoside and two new labdane-type diterpenoids were isolated from the fruit (chasteberry) of Vitex agnus-castus L. (Verbenaceae) along with 14 known compounds comprising seven labdane-type diterpenoids, one halimane-type diterpenoid, two oleanane-type triterpenoids, two ursane-type triterpenoids, one aromadendrane-type sesquiterpenoid, and one flavonoid. Their structures were characterized on the basis of spectroscopic data as well as chemical evidence. Furthermore, the antioxidative activities of the flavonoid were evaluated using five different analyses.