Monitoring the synthetic procedures of commercial drugs by 2H NMR spectroscopy: the case of ibuprofen and naproxen.

Talanta

Dipartimento di Chimica, Materiali, Ingegneria Chimica, Politecnico di Milano, and Istituto CNR per la Chimica del Riconoscimento Molecolare, Via Mancinelli 7, Milano I-20131, Italy.

Published: July 2008

We determined the D/H isotope ratios of some ibuprofen and naproxen samples by (2)H NMR spectroscopy. Some of these values were found to be useful for collecting hints on the synthetic procedures employed to prepare these drugs. Site-specific isotope ratio analysis shows great potentials in the fight against patent infringement.

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http://dx.doi.org/10.1016/j.talanta.2008.04.009DOI Listing

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