Role of Metal Ions and Hydrogen Bond Acceptors in Nitro-9-Acridine Drugs
Author Information
Author(s): Maria Carlone, Nicola G. Di Masi, Luciana Maresca, Nicola Margiotta, Giovanni Natile
Primary Institution: Dipartimento Farmaco-Chimico, Universith di Bari
Hypothesis
The presence of metal ions and hydrogen bond acceptors influences the tautomeric equilibrium of nitro-9-acridine drugs.
Conclusion
The study found that coordination to metal ions stabilizes the imino tautomer of acridine, which is considered the biologically active form.
Supporting Evidence
- The imino tautomer is considered to be the biologically active form of the acridine.
- Coordination to metal ions increases the acidity of the exocyclic nitrogen, stabilizing the imino tautomer.
- The study demonstrated that the presence of chloride ions can influence the tautomeric equilibrium of acridines.
Takeaway
This study shows that adding metal ions to certain drugs can change how they work in the body by making them more effective.
Methodology
The study involved synthesizing platinum-acridine complexes and analyzing their properties using NMR spectroscopy.
Limitations
The study primarily focuses on specific acridine derivatives and may not be generalizable to all acridine compounds.
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