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Stable Isotope Labeling of Pyrimidines Using a Deconstruction-Reconstruction Strategy.

Benjamin J H Uhlenbruck1, Andrew McNally1

  • 1Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States.

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Summary
This summary is machine-generated.

This study introduces a novel isotope exchange method for creating stable isotope-labeled pyrimidines. This technique enables the synthesis of higher mass isotopologs essential for pharmaceutical research and metabolic studies.

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Area of Science:

  • Medicinal Chemistry
  • Organic Synthesis
  • Biochemistry

Background:

  • Stable isotope incorporation is vital for pharmaceutical development.
  • Higher mass isotopologs are required for metabolic studies of drug candidates.

Purpose of the Study:

  • To develop an efficient isotope exchange method for synthesizing isotopically enriched pyrimidines.
  • To enable the creation of complex, drug-like pyrimidine derivatives with high isotopic enrichment.

Main Methods:

  • Deconstruction of pyrimidines into vinamidinium salts.
  • Reconstruction using deuterium, 13C, and 15N-enriched amidines.
  • Tf2O-mediated ring-opening/closing and cyclization with labeled amidines.

Main Results:

  • Achieved high isotopic enrichment in pyrimidines with diverse substitution patterns.
  • Successfully synthesized complex, drug-like pyrimidine derivatives.
  • Demonstrated deuteration at the 5-position for enhanced versatility.

Conclusions:

  • The presented method offers a versatile route for producing stable isotope-labeled pyrimidines.
  • This facilitates the generation of higher mass isotopologs for pharmaceutical and metabolic research.