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Updated: Jul 19, 2026
High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
[Chemical constituents from herb of Alternanthera philoxeroides]
Jin-bo Fang1, Hong-quan Duan, Yan-wen Zhang
1College of Pharmaceuticals, Tianjin University, China.
Objective:
To study the active constituents from Alternanthera philoxeroides.
Method:
The constituents were isolated with silica gel and Toyopearl HW-40C gel column chromatography and purified by HPLC. Their structures were elucidated by spectroscopy.
Result:
Nine compounds were isolated and identified as phaeophytin a (1), pheophytin a' (2), oleanoic acid (3), beta-sitosterol (4), 3beta-hydroxystigmast-5-en-7-one (5), alpha-spinasterol (6), 24-methylenecycloartanol (7), cycloeucalenol (8), phytol (9).
Conclusion:
Compounds 1,2,5,7-9 were isolated from this plant for the first time.
