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Updated: Jun 26, 2026
High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
[Studies on chemical constituents from twigs of Morus atropurpurea]
Yan-Lan Xu1, Xu-E Li, Yu-Xiao Zou
1Guangdong Provincial Key Lab of Biotechnology for Plant Development, South China Normal University, Guangzhou 510631, China.
Objective:
To study the chemical constituents of the twigs of Morus atropurpurea.
Method:
The compounds of the EtOAc fraction were isolated and purified by column chromatography on silica gel, polyamide, Sephadex LH -20, and their structures were elucidated on the basis of spectroscopic evidence (MS, NMR).
Result:
Eleven compounds were identified as mulberrin (1), cyclomulberrin (2), morusin (3), cyclomorusin (4), 2', 4',4, 2"-tetrahydroxy-3'-{3"-methylbut-3"-enyl-}-chalcone (5), mulberrofran G (6), scopoletin (7), moruchalcone A (8), kaempferol (9), ursolic acid (10), beta-daucosterol (11).
Conclusion:
Except compounds 9 and 11, all the other compounds were obtained from M. atropurpurea for the first time.