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Updated: Jun 22, 2026

High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
[Studies on the chemical constituents from Cissus assamica]
Yi-hui Xie1, Peng Deng, Ye-qing Zhang
1Jiangxi College of TCM, Nanchang 330006, China. xieyh6152003@yahoo.com.cn
Objective:
To study the chemical constituents from Cissus assamica and obtain a more comprehensive understanding of its effective components.
Methods:
Compounds were isolated by various column chromatographies with silica gel. Their structures were elucidated by spectral analysis (IR, MS, 1H-NMR, 13C-NMR) and chemical evidence.
Results:
Eight compounds were isolated and elucidated as ursolic acid (I), lupeol (II), n-hexacosinc acid (III), isolariciresinol-9-O-beta-D-glucopyranoside (IV), dauco sterin (V), 3,3'-dimethyl ellagic acid (VI), beta-Sitosterol (VII), bergenin (VIII).
Conclusion:
Among these compounds, I-V are isolated from this plant for the first time.
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