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Updated: Jun 7, 2026
High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
[Study on the chemical constituents of Cudrania tricuspidata]
Wu Wei-Chao1, Zhai Yan-Jun, Li Zheng-Yan
1Liaoning University of Traditional Chinese Medicine, Dalian 116600, China.
Objective:
To study on the chemical constituents of Cudrania tricuspidata.
Methods:
The chemical constituents were separated by means of silica gel and Sephadex LH-20 chromatography, and their structures were identified by spectra of 1H-NMR, 13 C-NMR.
Results:
Seven compounds were isolated and identified as Quercetin (I),5,7,4'-trihydroxyldihydroisoflavone (II), (13alpha, 14beta, 17alpha, 20R)-Lanosta-7, 24-diene-3beta-ol (III), (13alpha, 14beta,17alpha, 20R)-Lanosta-7,24-diene-3beta-0-acetate (IV), Taxifolin (V), Dihydromorin (VI), Cycloartocarpin(VII).
Conclusion:
Compounds III and IV are isolated from the genus for the first time.
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