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J Med Chem. 2001 Oct 25;44(22):3541-4.

Rapid enantiomeric quantification of an antiviral nucleoside agent (D,L-FMAU, 2'-fluoro-5-methyl-beta,D,L-arabinofurano-syluracil) by mass spectrometry.

Abstract

A novel mass spectrometric method is applied to rapid, accurate (<1%) quantification of chiral Clevudine (L-FMAU, 2'-fluoro-5-methyl-beta,L-arabinofuranosyluracil), a potent antiviral nucleoside agent against hepatitis B virus. Transition metal bound complex ions containing the chiral drug are generated by electrospray ionization mass spectrometry and subjected to collision-induced dissociation. The ratio of the two competitive dissociation rates is related to the enantiomeric composition of the drug mixture, allowing the determination of enantiomeric contamination in the drug.

PMID:
11606118
[Indexed for MEDLINE]

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