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Updated: Aug 20, 2026

High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
[Studies on chemical constituents in bulbs of Bolbostemma paniculatum]
Wen-yong Liu1, Wei-guang Chen, Wei-dong Zhang
1College of Pharmacy, Second Military Medical University, Shanghai 200433, China.
Objective:
To investigate the chemical constituents of the bulbs of Bolbostemma panicultum.
Method:
The compounds were isolated by column chromatography on silica gel, C18, Sephadex LH-20 separately and their structures were elucidated by chemical and spectroscopic technologies.
Result:
Eight compounds were isolated and identified as maltol(I), emodin(II), cucurbitacin B(III), cucurbitacin E(IV), stigmasta-7, 22, 25-triene-3-ol(V), stigmasta-7, 22, 25-triene-3-nonadecanoic acid ester(VI), stigmasta-7, 22, 25-triene-3-O-beta-D-glucopyranoside(VII), stigmasta-7, 22, 25-triene-3-O-beta-D-(6'-palmitoyl) glucopyranoside(VIII).
Conclusion:
I-VIII were obtained from this plant for the first time; VI and VIII are new compounds.
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