Abstract

This work presents the design and the synthesis of precursors of hexadentate bisphosphonic ligands able to complex iron cation. This study describes coupling reaction between natural siderophore entity and bisphosphonic acids. These latter have properties of complexing heavy metals. These compounds were obtained from amidation reaction between a protected and activated bisphosphonic compound and serine trilactone. In the intermediate species, all the hydroxyl groups of phosphorus are esterified with ethyl group. The coupling method gave access to triserinelactone-bisphosphonate conjugates in good yields.

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