Amide Coupling Reaction for the Synthesis of Bispyridine-based Ligands and Their Complexation to Platinum as Dinuclear Anticancer Agents

作者： Michael G. Apps1, Ben W. Johnson2, Oliver B. Sutcliffe3, Sarah D. Brown4, Nial J. Wheate1 1Faculty of Pharmacy,The University of Sydney, 2School of Science and Health,University of Western Sydney, 3Division of Chemistry and Environmental Science, School of Science and the Environment,Manchester Metropolitan University, 4Nature Publishing Group

简介：

Overview

This protocol outlines the synthesis of multinuclear platinum anticancer complexes through amide coupling reactions. The process involves creating bridging ligands from isonicotinic acid and diaminoalkanes, followed by coordination with platinum.

Key Study Components

Area of Science

• Chemistry
• Biochemistry
• Pharmacology

Background

• Multinuclear platinum complexes are of interest for their potential anticancer properties.
• BBR3464 and picoplatin are notable anticancer drugs that inspire this research.
• Bridging ligands play a crucial role in the stability and efficacy of these complexes.
• Amide coupling reactions are a common method for synthesizing such ligands.

Purpose of Study

• To develop a reliable method for synthesizing bridging ligands.
• To explore the coordination of these ligands with platinum.
• To purify the resulting metal complexes for further analysis.

Methods Used

• Synthesis of bis-pyridine bridging ligands via amide coupling.
• Recrystallization of ligands from hot water.
• Coordination of ligands to platinum using trans-diamine dichloroplatinum(II).
• Purification of metal complexes through fractional precipitation.

Main Results

• Successful synthesis of bridging ligands was achieved.
• Coordination with platinum was confirmed through chemical reactions.
• Purification methods yielded high-quality metal complexes.
• Proton nuclear magnetic resonance spectroscopy was used to analyze the results.

Conclusions

• The protocol effectively demonstrates the synthesis of multinuclear platinum complexes.
• Amide coupling reactions are a viable method for creating bridging ligands.
• Further studies may explore the anticancer efficacy of the synthesized complexes.

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