CHIRAL HIGH PERFORMANCE LIQUID CHROMATOGRAPHIC SEPARATION OF ENANTIOMERS OF α-METHYL α-AMINO ACIDS
作者:
Toshifumi Miyazawa,
Hiroe Minowa,
Yoshimi Shindo,
Takashi Yamada,
期刊:
Journal of Liquid Chromatography & Related Technologies
(Taylor Available online 2000)
卷期:
Volume 23,
issue 7
页码: 1061-1068
ISSN:1082-6076
年代: 2000
DOI:10.1081/JLC-100101507
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The enantiomeric separation by chiral high performance liquid chromatography of derivatized and underivatized α-methyl α-amino acids was achieved by two different methods. A cellulose tris(3,5-dimethylphenylcarbamate) chiral stationary phase column (Daicel Chiralcel OD) was used to resolve N-benzyloxycarbonylated methyl esters. Excellent separations of enantiomers were achieved with all the α-methyl α-amino acids examined. A column packed with octadecylsilanized silica coated with N,S-dioctyl-d-penicillamine as a chiral ligand-exchange phase (Sumichiral OA-5000) was also used to resolve the underivatized amino acids. Excellent to good separations of enantiomers were achieved with a variety of underivatized α-methyl α-amino acids carrying aliphatic or aromatic side-chains by optimizing the amount of the organic component and the concentration of the copper(II) ion in the hydro-organic eluent.
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