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  1. No Access

    Article

    HPLC Enantioseparation of 1-(α-Aminobenzyl)-2-naphthol and 2-(α-Aminobenzyl)-1-naphthol Analogs on a β-Cyclodextrin-Based Chiral Stationary Phase

    The enantiomers of 1-(α-aminobenzyl)-2-naphthol and 2-(α-aminobenzyl)-1-naphthol analogs were separated isothermally on a 3,5-dimethylphenylcarbamoylated β-cyclodextrin-based chiral stationary phase (Cyclobond DM...

    R. Berkecz, I. Ilisz, A. Ivanov-Sztojkov, I. Szatmári, F. Fülöp… in Chromatographia (2007)

  2. No Access

    Article

    Comparison of Separation Efficiency of Macrocyclic Glycopeptide-Based Chiral Stationary Phases for the LC Enantioseparation of β-Amino Acids

    Direct reversed-phase high-performance liquid chromatographic methods were developed for the separation of enantiomers of eighteen unnatural β-amino acids, including several β-3-homo-amino acids. The direct separ...

    A. Sztojkov-Ivanov, L. Lázár, F. Fülöp, D. W. Armstrong, A. Péter in Chromatographia (2006)

  3. No Access

    Article

    LC Enantioseparation of β-Lactam and β-Amino Acid Stereoisomers and a Comparison of Macrocyclic Glycopeptide- and β-Cyclodextrin-Based Columns

    Direct reversed-phase high-performance liquid chromatographic methods were developed for the separation of the enantiomers of tricyclic β-lactams, cis-3,4-benzo-6-azabicyclo[3.2.0]heptan-7-one, cis-4,5-benzo-7-az...

    R. Berkecz, R. Török, I. Ilisz, E. Forró, F. Fülöp, D. W. Armstrong… in Chromatographia (2006)

  4. No Access

    Article

    LC Enantioseparation of Aryl-Substituted β-Lactams Using Variable-Temperature Conditions

    Direct reversed-phase high-performance liquid chromatographic methods were developed for the separation of enantiomers of β-lactams. The enantiomers of 7 aryl-substituted β-lactams were separated on chiral statio...

    R. Berkecz, I. Ilisz, E. Forró, F. Fülöp, D. W. Armstrong, A. Péter in Chromatographia (2006)

  5. No Access

    Article

    High-Performance Liquid Chromatographic Separation of Stereoisomers of β-Amino Acids and a Comparison of Separation Efficiencies on Chirobiotic T and TAG Columns

    Direct and indirect reversed-phase high-performance liquid chromatographic methods were developed for the separation of enantiomers of seventeen unnatural β-amino acids, including several β-3-homo amino acids....

    A. Árki, D. Tourwé, M. Solymár, F. Fülöp, D. W. Armstrong, A. Péter in Chromatographia (2004)

  6. No Access

    Article

    Comparison of isothiocyanate chiral derivatizing reagents for high-performance liquid chromatography

    This paper describes the synthesis of a new chiral derivatizing reagent, (1S, 2R)-1-acetoxy-1-phenyl-2-propyl isothiocyanate ((S,R)-APPI), which is readily available in both enantiomeric forms after a straightfor...

    M. Péter, F. Fülöp in Chromatographia (2002)

  7. No Access

    Article

    High-performance liquid chromatographic separation of unusual amino acid enantiomers derivatized with (1S,2S)-1,3-diacetoxy-1-(4-nitrophenyl)-2-propyl-isothiocyanate

    A new chiral derivatizing agent (CDA), (1S,2S)-1,3-diacetoxy-1-(4-nitrophenyl)-2-propylisothiocyanate, (S,S)-DANI, was applied to the separation of the enantiomers of unusual amino acids containing two chiral cen...

    A. Péter, M. Péter, F. Fülöp, G. Török, G. Tóth, D. Tourwé, J. Sápi in Chromatographia (2000)

  8. No Access

    Article

    Development of new isothiocyanate-based chiral derivatizing agent for amino acids

    (1S,2S)-1,3-Diacetoxy-1-(4-nitrophenyl)-2-propylisothiocyanate [(S,S)-DANI] has been developed as a new chiral derivatizing agent for resolution of compounds containing an amino group. The reagent is readily avai...

    M. Peter, A. Peter, F. Fülöp in Chromatographia (1999)

  9. No Access

    Article

    High-Performance liquid chromatographic separation of enantiomers of unusual amino acids possessing cycloalkane or cycloalkene skeletons on a chiral crown ether containing stationary phase

    Direct reversed-phase high-performance liquid chromatographic methods were developed for the separation and identification of the enantiomers of mono- and bicyclic racemic β-amino acids:cis- andtrans-2-aminocyclo...

    G. Török, A. Péter, F. Fülöp in Chromatographia (1998)