Abstract
Citric acid is a very important scaffold and intermediate in organic/medicinal chemistry and biochemistry, as it is the most famous natural tricarboxylic acid whose unique fan-like backbone with three reactive carboxy groups (three wings) and one hydroxy group (one stand or stick) represent a very rich reactive environment for several organic reactions. Derivatives of 1,3,4-oxadiazoles, 1,3,4-thiadiazoles, and 1,2,4-triazoles exhibit diverse high pharmacological activity. According to the combination principles, if three substituted aromatic heterocyclic rings of the three previously-mentioned types are directly linked with a citric acid scaffold at the positions of the carboxy groups, the resulting derivatives are expected to be pharmacologically very active. This paper reports for the first time successful design, synthesis, and characterization of four three-winged nitrogenous heterocyclic derivatives of citric acid scaffold, which represent a new fan-shaped heteroaromatic pharmacophore.
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ACKNOWLEDGMENTS
I gratefully thank and deeply acknowledge the staff members and researchers of the Departments of Pharmaceutical Organic Chemistry and Medicinal Chemistry (Faculty of Pharmacy, Mansoura University, Mansoura, Egypt) for their sincere support and interest to make this new discovery and work coming out to light.
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Rabie, A.M. Four Three-winged Nitrogenous Heterocyclic Derivatives of Citric Acid Scaffold: The First Synthesis and Characterization of These Newly Discovered Fan-like Compounds. Russ J Org Chem 57, 417–421 (2021). https://doi.org/10.1134/S1070428021030131
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DOI: https://doi.org/10.1134/S1070428021030131