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Structural Analogues of Selfotel.
Zofia A Dziuganowska1, Katarzyna Ślepokura2, Jean-Noël Volle3
1Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Technology , Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
The Journal of Organic Chemistry
|May 18, 2016
Summary
Researchers synthesized novel phosphonopiperidylcarboxylic acids, potential NMDA receptor antagonists. These compounds, analogous to selfotel, show promising activity in preliminary neuronal studies, indicating therapeutic potential.
Area of Science:
- Medicinal Chemistry
- Organic Synthesis
- Neuroscience
Background:
- N-methyl-D-aspartate (NMDA) receptors are critical targets for neurological disorders.
- Selfotel (CGS 19755) is a known NMDA receptor antagonist.
- Development of novel analogues with improved properties is of significant interest.
Purpose of the Study:
- To synthesize a library of phosphonopiperidylcarboxylic acids as analogues of selfotel.
- To investigate the synthetic pathways for these novel compounds.
- To evaluate the preliminary biological activity of the synthesized compounds at NMDA receptors.
Main Methods:
- Palladium-catalyzed Hirao coupling of dialkyl phosphites with bromopyridinecarboxylates to form aromatic esters.
- Hydrolysis of esters to phosphonopyridylcarboxylic acids.
- Platinum dioxide (PtO2)-catalyzed hydrogenation of phosphonopyridylcarboxylic acids to yield phosphonopiperidylcarboxylic acids.
- Nuclear Magnetic Resonance (NMR) spectroscopy to study reaction mechanisms.
- X-ray crystallography for structural analysis of selected compounds.
Main Results:
- A small library of phosphonopiperidylcarboxylic acids was successfully synthesized.
- The synthesis involved Hirao coupling followed by hydrolysis and hydrogenation.
- NMR studies confirmed predominant cis addition during hydrogenation.
- Monocrystal structures were obtained for several compounds.
- Preliminary biological assays indicated promising activity against NMDA receptors.
Conclusions:
- Novel phosphonopiperidylcarboxylic acids, analogues of selfotel, were synthesized efficiently.
- The synthetic route provides access to a new class of potential NMDA receptor modulators.
- These compounds warrant further investigation for their therapeutic potential in neurological conditions.
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