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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 the chemical constituents of Rabdosia rubescens]
1School of Life Science and Technology, Beijing Institute of Technology, Beijing 100081, China. lvfangbeijing@163.com
Objective:
To study the chemical constituents from Rabdosia rubescens.
Methods:
Compounds were isolated by Silica gel,Sephadex LH-20 and ODS column chromatographies, their strctures were identified by physicochemical property and NMR, MS.
Results:
Eight constituents were identified as phaeophytin a (1), phaeophytin b (2), 17c-ethoxypheaophorbide a (3), 17c-ethoxyphea ophorbide b (4), oleanolic acid (5), physcion (6), emodin-8-O-beta-D-glucopyranoside (7), isorhamnetin (8).
Conclusion:
Compounds 1-4, 6 and 7 are obtained for the first time from this plant.