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Updated: May 11, 2026
High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
[Study on chemical composition of ethylacetate fraction from Polygonum amplexicaule var. sinense]
Mei-Xian Xiang1, Ya-Jing Hu, Yun-Jun Yan
1College of Pharmacy, South-Central University for Nationalities, Wuhan 430074, China. xiangmeixian99@163.com
Objective:
To study chemical composition of ethylacetate fraction from Polygonoum amplexicaule D. Don var. sinense Forb.
Methods:
TLC, Normal-phase silica gel column, reveres-phase silica gel column, Sephadex-LH, semi-preparative HPLC column were used to isolate chemical compositions of ethylacetate fraction from Polygonoum var. sinense.
Results:
Eight compounds were identified as: 1. P-Hydroxybenzoic acid, 2. P-Hydroxybenzoic ethanol, 3. Diisobutyl phthalate, 4. Vanillin, 5. Isovanillic acid, 6.3,4,5-trihydroxy-benzoic acid-butyl ester, 7. 4-hydroxy-3-methoxycinnamic acid, 8. 7-hydroxy-6-methoxycoumarin.
Conclusion:
Except of Diisobutyl phthalate, the others are isolated for the first from this plant, moreover, Vanillin, Isovanillic acid and P-hydro -xyphenethyl alcohol are gained from genus for the first time.
