title: Separation of nucleoside phosphoramidate diastereoisomers by high performance liquid chromatography and capillary electrophoresis.
abstract: Separations of five diastereoisomers of nucleoside phosphoramidate derivatives (pronucleotides) were performed by both HPLC method using derivatized cellulose and amylose chiral stationary phases and CE method using anionic cyclodextrins added in the background electrolyte (BGE). An optimal baseline separation (Rs > 1.5) was readily obtained with all silica-based celluloses and amyloses using in a normal-phase methodology. Capillary electrophoresis was used as an alternative technique to HPLC for the separation of pronucleotides. The diastereoisomers were fully resolved with sulfated cyclodextrins at both BGE pH (2.5 and 6.2). Limits of detection and limits of quantification, calculated for both methods, are up to 200 times higher in CE separations than in HPLC separations. The analytical HPLC method was then applied in a preliminary study for the pronucleotide 1 quantification in cellular extract.
authors.affiliation: Laboratoire de Chimie Analytique, EA 4034, Faculté des Sciences Pharmaceutiques et Biologiques, Université de LILLE 2, BP 83, 3, rue du Pr. Laguesse, 59006 Lille Cedex, France.
authors.forename: J F
authors.initials: JF
authors.lastname: Goossens
authors.forename: S
authors.initials: S
authors.lastname: Roux
authors.forename: D
authors.initials: D
authors.lastname: Egron
authors.forename: C
authors.initials: C
authors.lastname: Perigaud
authors.forename: J P
authors.initials: JP
authors.lastname: Bonte
authors.forename: C
authors.initials: C
authors.lastname: Vaccher
authors.forename: C
authors.initials: C
authors.lastname: Foulon
mesh_terms: D000577:Amides / Q000302:isolation & purification*; D045744:Cell Line, Tumor; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D019075:Electrophoresis, Capillary / Q000379:methods*; D006801:Humans; D009711:Nucleotides / Q000302:isolation & purification*; D010756:Phosphoric Acids / Q000302:isolation & purification*; D011355:Prodrugs / Q000302:isolation & purification; D035501:Uncertainty; D015215:Zidovudine / Q000031:analogs & derivatives / Q000302:isolation & purification
chemical_list: D000577:Amides; D009711:Nucleotides; D010756:Phosphoric Acids; D011355:Prodrugs; D015215:Zidovudine; C011067:phosphoramidic acid