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Updated: May 18, 2026
High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
[Study on the chemical constituents from Gnaphalium hypoleucum]
Qun Sun1, Ye Lu, Shuang-Qing Wu
1College of Pharmaceutical Science, Soochow University, Suzhou 215123, China.
Objective:
To research the chemical constituents from Gnaphalium hypoleucum.
Methods:
Compounds were separated by using silica gel, ODS, Sephadex LH-20 chromatography and their structures were elucidated by means of spectral data analysis.
Results:
Ten compounds were isolated and identified as tetracosanoic acid (1), 5-hydroxy-3,6,7,8-tetramethoxyflavone (2), beta-sitosterol (3), 5-hydroxy-3,6,7,8,4'-pentamethoxyflavone (4), 5-hydroxy-3,6, 7,8,3',4'-hexamethoxyflavone (5), apigenin (6), luteolin (7), quercetin (8), luteolin4'-O-beta-D-glucoside (9), quercetin-4'-O-beta-D-glucoside (10).
Conclusion:
All of these compounds are isolated from this plant for the first time. Compound 5 is isolated from the genus for the first time.
