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  • 1
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Chirality 9 (1997), S. 10-12 
    ISSN: 0899-0042
    Keywords: piperidine-2,6-dione ; chiral recognition ; enantioselectivity ; elution order ; cellulose based chiral stationary phase ; reversed phase mode ; Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A newly developed reversed phase cellulose tris(4-methyl benzoate) known as Chiralcel OJ-R was used to investigate the chiral recognition and enantiomeric separation of eight racemic piperidine-2,6-dione compounds - namely, aminoglutethimide and its major metabolite acetylaminoglutethimide, glutethimide, cyclohexylamino-glutethimide, pyridoglutethimide, thalidomide, phenglutarimide, and 3-phenylacetyl-amino-2,6-piperidinedione (antineoplaston A-10). Chiral separation of these compounds was achieved under varying ratios of the mobile phase, except for phenglutarimide and 3-phenylacetylamino-2,6-piperidinedione, for which separation was unsuccessful. Possible chiral recognition mechanisms are also presented. Chirality 9:10-12, 1997. © 1997 Wiley-Liss, Inc.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0899-0042
    Keywords: cyclic imides ; barbiturates ; piperidine-2,6-diones ; mephenytoin ; chiral recognition ; enantioselectivity ; vancomycin chiral stationary phase ; normal-phase mode ; reversed-phase mode ; Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Several cyclic imidic compounds (barbiturates, piperidine-2,6-diones, and mephenytoin) are enantiomerically resolved via high-performance liquid chromatography (HPLC) on a macrocyclic antibiotic covalently bonded to a silica gel support. The Chirobiotic V chiral stationary phase (CSP) column contains the antibiotic vancomycin as the chiral selector. The results of the analysis show that the substituents at the chiral carbon position of the racemic drugs affect chiral resolution. In addition, ring size may also play a role when considering the formation of analyte-CSP inclusion complexes. Contrary to the piperidine-2,6-diones, the chromatographic parameters for the barbiturates are much the same under normal- or reversed-phase conditions. The details of these results are discussed. Chirality 10:358-361, 1998. © 1998 Wiley-Liss, Inc.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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