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Updated: Jun 17, 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 Chaenomeles speciosa]
Ying-bo Yang1, Yang Yang, Xia Li
1Jilin Agricultural University, Changchun 130118, China. yyb_gy@126.com
Objective:
To study the chemical constituents of Chaenomeles speciosa.
Methods:
Isolation and purification were carried out by varied chromatographies, and structure identifications of compounds were carried out by physical methods, chemical methods and spectral data.
Results:
Seven compounds were obtained from the ethyl acetate fraction of C. speciosa, and were identified as cinnamic acid (I), 2'-methoxyaucuparin (II), 2-hydroxyl-butanedioic acid-4-methylester (III), esculetin (IV), p-hydroxybenzoic acid (V), chlorogenic acid (VI), caffeic acid (VII).
Conclusion:
Compounds I - IV are obtained from Chaenomeles genus for the first time.