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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
[Studies on the chemical constituents of Xanthoceras sorbifolia]
1The Fourth People's Hospital of Zhen jiang, Zhenjiang 212000, China. jszhp20@163.com
Objective:
To study the chemical constituents of Xanthoceras sorbifolia for explaining the active compounds.
Methods:
The constituents were isolated by silica gel column chromatography. Sephadex LH-20, MCI et al and the LC-MS-MS, 1H-NMR, 13C-NMR, CD spectroscopic analysis were employed for the structure identification.
Results:
9 compounds were obtained and their structures were identified as (2R, 3R)-dihydromyricetin (I), myricetin (II), quercetin (III), (2R, 3S)-catechin (IV), gallocatechin (V), (2R, 3R)-3,3',5,5',7-pentahydroxyflavanone (VI), (2S) -3',4',5,5',7-pentahydroxyflavanone (VII), (-) epigallocatechin (VIII) , proanthocyanidin A2 (IX).
Conclusion:
Compound I, IV, VI, VII are isolated from xanthoceras genus for the first time.