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Updated: Jun 4, 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 Pharbitis purpurea]
Jin-Lan Wang1, Zhun Hua, Bao-Ying Zhao
1Institute of Chemistry and Chemistry Engineering, Qiqihar University, Qiqihar 161006, China.
Objective:
To study the chemical constituents of Pharbitis purpurea.
Methods:
The constituents were isolated by silica gel column chromatography, HPLC and recrystallization and their structures were elucidated on the basis of spectral analysis.
Results:
Fourteen compounds were isolated and identified as daucosterol (1), umbelliferone (2), ursolic acid (3), N-p-hydroxy-cis-coumaroyltyramine (4), N-p-hydroxy-trans-coumaroyltyramine (5), N-cis-feruloyltyramine (6), N-trans-feruloyltyramine (7), (3R, 5R, 6S, 7E, 9S)-megastigman-5,6-epoxy-7-ene-3,9-diol (8), (6S,9R)-vomifoliol (9), (+)-syringaresinol (10), isovitexin (11), syringopicroside( 12), uricil (13), (6S,9R)-roseoside (14).
Conclusion:
Compounds 3, 8-2,14 are isolated from the genus for the first time.
