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Biosynthesis of Nucleic Acids01:28

Biosynthesis of Nucleic Acids

Nucleic acid biosynthesis is a fundamental biochemical process that produces the purine and pyrimidine nucleotides essential for DNA and RNA synthesis. This pathway maintains a balanced nucleotide pool, preventing imbalances that could jeopardize genetic integrity and cellular function. Given the crucial role of nucleotides, their synthesis is tightly regulated to ensure proper cellular homeostasis.Purine BiosynthesisThe biosynthesis of purine nucleotides begins with ribose-5-phosphate, a...
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Antiviral Nucleoside Inhibitors

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Cycloaddition Reactions: Overview01:16

Cycloaddition Reactions: Overview

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Cyclohexenones via Michael Addition and Aldol Condensation: The Robinson Annulation01:27

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Nucleoside Triphosphates - From Synthesis to Biochemical Characterization
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Published on: April 3, 2014

Synthesis of cyclobutane nucleosides.

Abdelaziz Ebead1, Rene Fournier, Edward Lee-Ruff

  • 1Department of Chemistry, York University, Toronto, Ontario, Canada.

Nucleosides, Nucleotides & Nucleic Acids
|July 26, 2011
PubMed
Summary

Researchers synthesized novel adenine nucleoside analogues from 6-chloropurine and a cyclobutanone derivative. The N-alkylation produced two regioisomers, yielding valuable analogues after reduction and aminolysis, though hypoxanthine byproducts were observed.

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Protocol for the Solid-phase Synthesis of Oligomers of RNA Containing a 2'-O-thiophenylmethyl Modification and Characterization via Circular Dichroism
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Protocol for the Solid-phase Synthesis of Oligomers of RNA Containing a 2'-O-thiophenylmethyl Modification and Characterization via Circular Dichroism
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Protocol for the Solid-phase Synthesis of Oligomers of RNA Containing a 2'-O-thiophenylmethyl Modification and Characterization via Circular Dichroism

Published on: July 28, 2017

Area of Science:

  • Organic Chemistry
  • Medicinal Chemistry
  • Nucleoside Analogue Synthesis

Background:

  • Nucleoside analogues are crucial in antiviral and anticancer therapies.
  • Developing efficient synthetic routes for novel nucleoside analogues remains a key challenge.
  • Cyclobutane rings offer unique structural motifs for drug design.

Purpose of the Study:

  • To synthesize novel adenine nucleoside analogues incorporating a cyclobutane core.
  • To investigate the regioselectivity of N-alkylation reactions involving 6-chloropurine.
  • To evaluate the potential of these analogues as therapeutic agents.

Main Methods:

  • Preparation of 2-(6-chloropurinyl)-3-benzoyloxymethylcyclobutanone via reaction of 6-chloropurine with 3-benzoyloxymethyl-2-bromocyclobutanone.
  • Separation and characterization of N-9 and N-7 regioisomers.
  • Hydride reduction and subsequent aminolysis of both regioisomers.

Main Results:

  • Successful synthesis of both N-9 and N-7 regioisomers through N-alkylation.
  • Conversion of both regioisomers into corresponding adenine nucleoside analogues.
  • Identification of hypoxanthine analogues as byproducts from the N-7 series.

Conclusions:

  • The described synthetic strategy provides access to novel cyclobutane-containing nucleoside analogues.
  • Regioselectivity in N-alkylation is a critical factor influencing the outcome of the synthesis.
  • Further investigation is warranted to optimize the synthesis and explore the biological activity of these compounds.