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Updated: May 14, 2026
High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
[Sesquiterpenes from stem of Schisandra glaucescens]
Pei-Pei Zhang1, Sha-Sha Gao, Tian-Tian Zhang
1Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
Objective:
To study the chemical constituents from Schisandra glaucescens.
Method:
The chemical constituents were separated and purifed with silica gel, gel column chromatography preparative HPLC, and their structures were identified by such spectral methods as MS and NMR.
Result:
Twelve compounds were separated from petroleum ether fractions, and identified as t-cadinol (1), alpha-cadinol (2), torreyol (3), (+)-ent-epicubenol (4), ent-T-muurolol (5), (-)-15-hydroxycalamenene (6), (-)-cubebol (7), 4-epi-cubebol (8), caryophyllenol-I (9), caryophyllenol-II (10), oxyphyllenodiols A (11), caryolane-1,9/3-diol (12).
Conclusion:
Compounds 4, 6-12 were separated from the genus for the first time, while compounds 1-12 were separated from this plant for the first time.
