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Solid-state nuclear magnetic resonance spectroscopy--pharmaceutical applications.

Patrick A Tishmack1, David E Bugay, Stephen R Byrn

  • 1SSCI, Inc., 3065 Kent Avenue, West Lafayette, Indiana 47906, USA.

Journal of Pharmaceutical Sciences
|February 15, 2003
PubMed
Summary

Solid-state nuclear magnetic resonance (NMR) spectroscopy is crucial for characterizing pharmaceutical solids. This review details NMR methods for analyzing drug structure, molecular motion, resonance assignment, and internuclear distances.

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Area of Science:

  • Pharmaceutical Sciences
  • Solid-state Chemistry
  • Spectroscopy

Background:

  • Solid-state nuclear magnetic resonance (NMR) spectroscopy is a vital tool in pharmaceutical research.
  • Its application extends to the detailed characterization of both drug substances and finished dosage forms.

Purpose of the Study:

  • This review synthesizes the application of solid-state NMR techniques in pharmaceutical analysis.
  • It highlights methods for elucidating the structural and dynamic properties of pharmaceutical solids.

Main Methods:

  • The review covers solid-state NMR methods for studying structure and conformation.
  • Techniques for analyzing molecular motions, including relaxation and exchange spectroscopy, are discussed.
  • Methods for resonance assignment (spectral editing, 2D correlation spectroscopy) and internuclear distance measurements are detailed.

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Main Results:

  • Solid-state NMR provides comprehensive insights into pharmaceutical solid-state properties.
  • The discussed techniques enable detailed structural and dynamic characterization.
  • NMR is effective for analyzing complex drug formulations.

Conclusions:

  • Solid-state NMR spectroscopy is indispensable for the thorough characterization of pharmaceutical solids.
  • These advanced NMR techniques offer powerful capabilities for drug development and quality control.
  • Further application of these methods will advance pharmaceutical solid-state science.