Tetramic Acid Derivatives in Natural Product Synthesis
Summary
Tetramic acid derivatives are five-membered heterocycles bearing adjacent keto and amide functionalities that act as versatile scaffolds in natural products. These compounds arise from both non-ribosomal peptide synthetase pathways and tailored chemical syntheses, yielding an array of stereochemically rich structures with herbicidal, antimicrobial and antiparasitic activities. Advances in enzymatic and catalytic methodologies have enabled the selective assembly and diversification of the tetramic acid core, while total synthesis campaigns have furnished key stereoisomers for biological evaluation. The interplay of biosynthetic logic and synthetic ingenuity has generated libraries of derivatives in which subtle changes to substituents, stereochemistry or glycosylation patterns dramatically modulate activity profiles. Globally, these compounds inspire new agrochemicals and therapeutic leads, with ongoing research focused on improving potency, selectivity and sustainable production routes through integrated biochemical and synthetic approaches.
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Tetramic Acid Derivatives in Natural Product Synthesis publication trend
The graph below shows the total number of articles in tetramic acid derivatives in natural product synthesis across all publications each year (not limited to Nature Index journals).
Technical terms
Tetramic acid: A heterocycle bearing both keto and amide groups at adjacent positions, found in many bioactive natural products.
Non-ribosomal peptide synthetase: A multi-enzyme complex that assembles peptide-based natural products independently of the ribosome, often incorporating unusual amino acids.
Eutomer: The enantiomer of a chiral compound that exhibits greater biological activity than its mirror image.
Structure–activity relationship (SAR): The correlation between molecular structure modifications and variations in biological activity.
IC₅₀: The concentration of a compound required to inhibit a given biological process or enzyme by 50%, a standard measure of potency.
References
- Discovery, Herbicidal Activity and Biosynthesis of a Novel Natural Tetramic Acid from Alternaria Species. Advanced Science (2025).
- Aurantoside L, a New Tetramic Acid Glycoside with Anti-Leishmanial Activity Isolated from the Marine Sponge Siliquariaspongia japonica. Marine Drugs (2024).
- Bioprospection of Tenellins Produced by the Entomopathogenic Fungus Beauveria neobassiana. Journal of Fungi (2024).
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