Related Experiment Video
Updated: Jun 9, 2026
07:50
2D-HPLC-MS Technology Combined with Molecular Network for the Identification of Components in Tibetan Medicine Aconitum pendulum
Published on: December 8, 2023
Two new glycosides from Conyza bonariensis
Aqib Zahoor1, Imran Nafees Siddiqui, Afsar Khan
1H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi- 75270, Pakistan.
Natural Product Communications
|August 26, 2010
Summary
Two new glycosides, erigeside E and F, were isolated from Conyza bonariensis. Their structures were identified using advanced spectroscopic methods, expanding knowledge of plant-derived compounds.
Area of Science:
- Phytochemistry
- Natural Product Chemistry
Background:
- Conyza bonariensis (L.) Cronq. is a plant species with potential for novel compound discovery.
- Glycosides are compounds with a sugar molecule attached to another functional group, often exhibiting diverse biological activities.
Purpose of the Study:
- To isolate and characterize new glycosides from Conyza bonariensis.
- To elucidate the chemical structures of the isolated compounds using spectroscopic techniques.
Main Methods:
- Isolation of compounds using chromatographic techniques.
- Structure elucidation via mass spectrometry (MS).
- Detailed analysis using 1D and 2D Nuclear Magnetic Resonance (NMR) spectroscopy (1H NMR, 13C NMR, HMQC, HSQC, HMBC).
Main Results:
- Two new glycosides, erigeside E (1) and erigeside F (2), were isolated.
- Two known compounds, benzyl-beta-D-glucopyranoside (3) and 2-phenylethyl-beta-D-glucopyranoside (4), were also identified.
- Compound 1, 3, and 4 were identified as aromatic glycosides.
- Compound 2 was identified as an alkyl glycoside.
Conclusions:
- The study successfully identified and characterized four glycosides from Conyza bonariensis, including two novel compounds.
- The structural elucidation confirmed the presence of both aromatic and alkyl glycosides in the plant.
- This research contributes to the understanding of the phytochemical profile of Conyza bonariensis.
