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High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
[Studies on chemical constituents from the stems of Schisandra sphaerandra]
Jie Guo1, Li-Hui Liu, Shuang-Xi Mei
1School of Pharmacy, Yunnan University, Department of Chemistry, Dali College, Yunnan, China.
Objective:
To investigate the chemical constituents from the stems of Schisandra sphaerandra.
Method:
Compounds were isolated from ethanolic extract of the titled herb by silica gel column chromatography, and their structures were elucidated by physical and chemical evidences and spectroscopic analysis.
Result:
12 compounds were obtained and identified as wuweizisu C (1), ganwuweizic acid (2), nigranoic acid (3), catechin (4), 2 alpha,24-dihytroxyursolic acid. (5), 3 beta-O-acetylursolic acid (6), ursolic acid (7), slyceryl 26-hydroxyhexacosanoate (8), slyceryl hexacosanoate (9), fat acids (10), beta-sitosterol (11), daucosterol (12), respectirely.
Conclusion:
Three pentacyclic triterpene carboxylic acid (5-7) were isolated from Schisandreae for the first time.
