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Updated: Jun 27, 2026
High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
[Chemical constituents from herbs of Swertia delavayi]
Cong-long Xia1, Guang-ming Liu, Hao Zhang
1Department of Pharmacy, Dali University, Dali 671000, China. long7484@126.com
Objective:
To isolate and identify the chemical constituents of 95% alcohol extract from Swertia delavayi.
Method:
The compounds were isolated and purified by column chromatogrphy and their structures were identified by the physicochemical properties and spectral analyses.
Result:
Seven compounds were isolated and identified as oleanolic acid (1), gentiopcroside (2), swertiamarin (3), daucosterol (4), swertiadecoraxanthone-II (5), isovitexin (6), isoorientin (7).
Conclusion:
Compounds 2-7 were isolated from S. delavayi for the first time. While the compound 6 was firstly reported from the genus Swertia.