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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...
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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...
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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...
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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...
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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....
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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...
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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...
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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...
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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...