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3',4'-trans-linked bicyclic nucleosides locked in S-type conformations
Helena Thomasen1, Michael Meldgaard, Morten Freitag
1Nucleic Acid Center, Department of Chemistry, University of Southern Denmark, DK-5230, Odense M, Denmark.
Chemical Communications (Cambridge, England)
|September 26, 2002
Summary
Researchers synthesized novel bicyclic nucleosides with locked furanose conformations. These compounds were created using cyclic ether formation and ring-closing metathesis methods.
Area of Science:
- Organic Chemistry
- Medicinal Chemistry
- Nucleoside Analog Synthesis
Background:
- Nucleoside analogs are crucial in antiviral and anticancer therapies.
- Modulating furanose conformation can impact biological activity.
- Locked nucleosides offer unique structural and functional properties.
Purpose of the Study:
- To introduce a novel class of 3',4'-trans-linked bicyclic nucleosides.
- To synthesize model derivatives with locked S-type furanose conformations.
- To explore efficient synthetic routes for these unique structures.
Main Methods:
- Synthesis of bicyclic nucleoside derivatives.
- Cyclic ether formation strategy.
- Ring-closing metathesis methodology.
Main Results:
- Successful synthesis of two model derivatives of 3',4'-trans-linked bicyclic nucleosides.
- Demonstration of locked S-type furanose conformations.
- Validation of both cyclic ether formation and ring-closing metathesis as viable synthetic approaches.
Conclusions:
- A new class of bicyclic nucleosides with constrained furanose rings has been established.
- The developed synthetic methods provide access to these novel compounds.
- These locked nucleosides hold potential for future medicinal chemistry applications.