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Updated: Jun 20, 2026
High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
[Two en-kaurene diterpenoids from Tibetan medicine Caryopteris toroetii]
Sheng Que1, Yuying Zhao, Yong Zhou
1Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China. qsyang96@163.com
Objective:
To study the chemical constituents of Tibetan medicine Caryopteris toroetii.
Method:
The crude drug was extracted with 95% EtOH and isolated by repeated chromatographic methods. The structures of the isolated compounds were elucidated on the basis of spectral analysis.
Result:
Two en-kaurene diterpenoid compounds: oridonin (1) and nodosin (2), were obtained from C. toroetii and their 1H and 13C-NMR data in CD3OD were reported for the first time.
Conclusion:
The en-kaurene diterpenoid compounds were obtained from genus Caryopteris for the first time.
