Related Experiment Video
Updated: May 30, 2026
12:10
Protocols for Visualizing Steroidogenic Organs and Their Interactive Organs with Immunostaining in the Fruit Fly Drosophila melanogaster
Published on: April 14, 2017
Ecdysteroids from Polypodium vulgare L.
András Simon1, Attila Ványolós, Zoltán Béni
1Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szt Gellért tér 4, H-1111 Budapest, Hungary.
Steroids
|August 2, 2011
Summary
Researchers isolated three new and eight known phytoecdysteroids from Polypodium vulgare L. rhizomes. Spectroscopic methods, including NMR, were used to elucidate their structures, aiding in the understanding of these plant compounds.
Area of Science:
- Phytochemistry
- Natural Product Chemistry
- Organic Chemistry
Background:
- Phytoecdysteroids are plant-derived compounds with potential biological activities.
- Polypodium vulgare L. (common polypody) is a traditional medicinal plant.
- Understanding the chemical constituents of medicinal plants is crucial for their application.
Purpose of the Study:
- To isolate and characterize new and known phytoecdysteroids from Polypodium vulgare L. rhizomes.
- To elucidate the chemical structures of isolated compounds using advanced spectroscopic techniques.
- To provide detailed NMR assignments for specific known compounds.
Main Methods:
- Extraction of compounds from Polypodium vulgare L. rhizomes.
- Isolation of compounds using chromatographic techniques.
- Structure elucidation via 1D and 2D Nuclear Magnetic Resonance (NMR) spectroscopy.
- Analysis of (1)H and (13)C NMR data.
Main Results:
- Three novel phytoecdysteroids, designated as compounds 3, 7, and 11, were successfully isolated.
- Eight known phytoecdysteroids (compounds 1, 2, 4-6, and 8-10) were also identified.
- The structures of all isolated compounds were determined through comprehensive spectroscopic analysis.
- Detailed (1)H and (13)C NMR assignments were provided for compounds 1, 6, 9, and 10.
Conclusions:
- The rhizomes of Polypodium vulgare L. are a rich source of diverse phytoecdysteroids.
- The identification of new compounds expands the known chemical diversity of this plant genus.
- The provided structural and spectroscopic data contribute to the knowledge base of phytoecdysteroid chemistry.
Related Concept Videos
01:31Hormones of the Adrenal Glands
Adrenal hormones play a pivotal role in maintaining the body's electrolyte balance and orchestrating responses to stress, showcasing the intricate functions of the adrenal cortex and medulla.
The adrenal cortex, a powerhouse of hormone synthesis, generates over two dozen corticosteroid hormones. The zona glomerulosa produces mineralocorticoids, exemplified by aldosterone, influencing the electrolyte composition of body fluids. The synthesis of glucocorticoids such as cortisol and corticosterone...
The adrenal cortex, a powerhouse of hormone synthesis, generates over two dozen corticosteroid hormones. The zona glomerulosa produces mineralocorticoids, exemplified by aldosterone, influencing the electrolyte composition of body fluids. The synthesis of glucocorticoids such as cortisol and corticosterone...
01:15Antifungal Agents
Amphotericin B is a broad-spectrum antifungal agent that exploits structural differences between fungal and mammalian cell membranes. Its amphipathic structure—featuring a hydrophobic polyene-lactone ring and a hydrophilic region containing mycosamine and carboxylic acid groups—enables selective binding to ergosterol, a sterol predominantly found in fungal plasma membranes. This selective interaction underlies the drug’s antifungal activity, although weak binding to cholesterol contributes to...