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Updated: Jul 14, 2026
High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
[Studies on constituents of Dendrobium gratiosissimum]
Min Wang1, Chao-feng Zhang, Zheng-tao Wang
1Department of Pharmacognosy, China Pharmaceutical University, Nanjing 210038, China.
Objective:
To study the chemical constituents of Dendrobium gratiosissimum.
Method:
The constituents were isolated and purified by silica gel, Sephadex LH-20 colum chromatography, and the structures were identified by physicochemical properties and spectral data.
Result:
Nine compounds were obtained as: 3,5,4'-trihydroxybibenzyl (1), 3,4'-dihydroxy-5-methoxybibenzyl (2), 3,4-dihydroxy-4', 5-dimethoxybibenzyl (3), apigenin (4), p-hydroxybenzaldehyde (5), defuscin (6), n-octacostyl ferulate (7), beta-sitosterol (8) and daucosterol (9).
Conclusion:
All these compounds were obtained from this plant for the first time, and compounds 2, 4 and 5 were isolated firstly from this genus.
