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Updated: Sep 13, 2025
09:04
A Direct, Early Stage Guanidinylation Protocol for the Synthesis of Complex Aminoguanidine-containing Natural Products
Published on: September 9, 2016
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Guanidine alkaloids from marine sponges
Mehmet Han Büyükdağ1, Svenja Burth1, Maggie M Reddy1
1School of Biological and Chemical Sciences, Ryan Institute, University Road, Galway, Ireland.
The Alkaloids. Chemistry and Biology
|July 25, 2025
Summary
Marine sponges are a rich source of guanidine alkaloids, unique compounds with potential for new drug development. Despite a shift to microbial sources, sponges remain vital for discovering novel marine therapeutics.
Area of Science:
- Marine Biology
- Natural Product Chemistry
- Drug Discovery
Background:
- Marine biodiversity offers unique chemical compounds for the blue bioeconomy.
- Sponges and their associated microbiota are key sources of bioactive metabolites.
- Guanidine alkaloids, rare in terrestrial life, are diverse in marine sponges.
Purpose of the Study:
- To review the chemical diversity of sponge-derived guanidine alkaloids since the 1950s.
- To analyze shared metabolic characteristics across guanidine alkaloid groups.
- To highlight the potential of these compounds for novel marine drug discovery.
Main Methods:
- Literature review of sponge-derived guanidine alkaloids.
- Analysis of chemical diversity and metabolic characteristics.
- Organization of findings by sponge taxonomic orders.
Main Results:
- Identified diverse guanidine alkaloids (basic guanidine alkaloids and 2-aminoimidazole alkaloids) in sponges.
- Revealed shared metabolic traits among different guanidine alkaloid groups.
- Confirmed sponges as a continuous source of unique metabolites.
Conclusions:
- Sponge-derived guanidine alkaloids show significant potential for developing new marine drugs.
- Sponges, as complex holobionts, remain exceptional reservoirs of chemical diversity.
- Understanding sponge-microbe interactions is crucial for future therapeutic applications.
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