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Updated: Jul 9, 2026
High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
[Studies on chemical constituents from root of Cynanchum atratum]
Ying Yuan1, Wei-Dong Zhang, Chuan Zhang
1School of Pharmacy, Shanghai Jiaotong University, Shanghai 200240, China.
Objective:
To study the chemical constituents from the roots and rhizome of Cynanchum atratum.
Method:
The chemical constituents were isolated and repeatedly purified by silica gel chromatography and the structures were elucidated by the NMR spectra and physicochemical properties.
Result:
Twelve compounds were obtained and nine of them were identified as 2, 4-dihyroxyacetophe none (1), 2, 6-dihyroxyacetophenone (2), 4-hydroxybenzenemethanol (3), benzoic acid (4), beta-amyrin acetate (5), palmitic acid (6), beta-sitosterol (7), beta-daucosterol (8), glaucogenin C-3-O-alpha-D-oleandropyranosyl-(1 --> 4)-beta-D-digitoxopyranosyl-(1 -->4)-alpha-D-oleandropyranoside (9).
Conclusion:
Seven compounds were obtained from C. atratum for the first time.
