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High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
[Chemical constituents from Myricaria alopecuroides]
Zhanjun Li1, Peifeng Xue, Hongxia Xie
1School of Pharmacy, Inner Mongolia Medical College, Hohhot 010059, China. lizhanjun-124@163.com
Objective:
To investigate the chemical constituents in the leaves and branches of Myricaria alopecuroides.
Method:
Solvent extraction method was employed to extract and partition. The chemical constituents were isolated by column chromatography on silica gel, Sephadex LH-20, highly porous resin HP-20. The structures of the compounds were elucidated on the basis of physiochemical properties and spectral analysis.
Result:
Eleven compounds were isolated from this plant and identified as ellagic acid 3,3',4-trimethylether (1), ellagic acid 3,3'-dimethylether (2), isorhamnetin (3), kaempferol (4), 3, 5-dihydroxy-4-methoxybenzoic acid (5), daucosterol (6), 6,7,10-trihydroxy-8-octadecenoic acid (7), quercetin (8), gallic acid (9), palmitic acid (10), hexadecanoic acid, 2,3-dihydroxypropyl ester (11).
Conclusion:
Except 8 and 9, all compounds were isolated from M. alopecuroides for the first time. Compound 1, 2, 5, 7, 10, 11 were obtained from the genus Myricaria for the frist time.
