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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 of Illicium simonsii]
Xiao-Ya Shang1, Miao-Ru Guo, Cong-Wei Zhao
1Beijing Key Laboratory of Bioactive Substances and Functional Foods, College of Arts & Science of Beijing Union University, Beijing 100083, China.
Objective:
To study the chemical constituents from the active fractions against HIV in vitro, a crude ethanolic extract of Illicium simonsii.
Method:
The compounds were isolated with column chromatography methods. MS and NMR spectroscopic methods were used to determine the structures of the compounds.
Result:
Seven compounds were isolated from the active fractions against HIV in vitro of the 90% ethanol extract and their structures were elucidated as (+)-catechin (1), (-)-epicatechin (2), (+)-catechin 3-O-alpha-L-rhamnopyranoside (3), kaempferol 3-O-alpha-L-rhamnopyranoside (4), quercetin 3-O-alpha-L-rhamnopyranoside (5), erigeside C (6) and daucosterol (7).
Conclusion:
Seven compounds were isolated from this plant for the first time, but none of them exhibited active against HIV in vitro. Compounds 3 and 6 were isolated from this genus for the first time.
