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Generation of Dynamic Combinatorial Libraries Using Hydrazone-Functionalized Surface Mimetics.

Sarah H Hewitt1,2, Andrew J Wilson1,2

  • 1School of Chemistry University of Leeds Woodhouse Lane 9JT Leeds LS2 UK.

European Journal of Organic Chemistry
|May 22, 2018
PubMed
Summary
This summary is machine-generated.

Dynamic combinatorial chemistry (DCC) creates targeted protein ligands using reversible reactions. This method enables the discovery of novel molecules with high affinity for specific protein targets.

Keywords:
Dynamic combinatorial chemistryHydrazonesPorphyrinsProtein surface mimetics

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Area of Science:

  • Supramolecular Chemistry
  • Medicinal Chemistry
  • Chemical Biology

Background:

  • Traditional supramolecular scaffolds can be adapted for protein surface recognition.
  • Dynamic combinatorial chemistry (DCC) offers a novel approach for generating molecular libraries.
  • High affinity target recognition is crucial for drug discovery and molecular probe development.

Purpose of the Study:

  • To explore the utility of dynamic combinatorial chemistry (DCC) for creating selective, high-affinity ligands.
  • To investigate the use of tetracarboxyphenyl porphyrin scaffolds in forming dynamic combinatorial libraries (DCLs).
  • To establish conditions for equilibrium in DCLs using reversible hydrazone exchange.

Main Methods:

  • Formation of dynamic combinatorial libraries (DCLs) using tetracarboxyphenyl porphyrin scaffolds and aniline catalysis.
  • Utilizing reversible hydrazone exchange reactions for library generation.
  • Employing high-resolution mass spectrometry (HRMS) to monitor library composition and reaction equilibria.

Main Results:

  • Successfully generated dynamic combinatorial libraries (DCLs) from generic tetracarboxyphenyl porphyrin scaffolds.
  • Identified conditions for establishing equilibria in DCLs via aniline-catalyzed hydrazone exchange.
  • Demonstrated the potential of DCC for creating multivalent ligands for protein targets.

Conclusions:

  • Dynamic combinatorial chemistry (DCC) is a powerful strategy for discovering selective, high-affinity ligands.
  • Tetracarboxyphenyl porphyrin scaffolds are suitable for constructing DCLs through reversible hydrazone chemistry.
  • The methodology allows for in situ screening and amplification under selection pressure for targeted ligand generation.