Journal
JOURNAL OF LIQUID CHROMATOGRAPHY & RELATED TECHNOLOGIES
Volume 24, Issue 17, Pages 2673-2684Publisher
MARCEL DEKKER INC
DOI: 10.1081/JLC-100106094
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The macrocyclic glycopeptides, vancomycin, teicoplanin, and ristocetin A are naturally occurring chiral molecules that have been developed into one of the most useful classes of chiral stationary phases (CSPs) for HPLC, Since these chiral selectors are structurally related, they tend to have similar, but not identical, enantioselectivities for most compounds. CSPs, of this type, with opposite enantioselectivities are rare. Two exceptions have been found to this. The oxazolidiones (starting materials for asymmetric synthesis) and dansyl amino acids all show a reversal in enantioselective retention on one of these three related CSPs. By using the HPLC assays developed for these compounds, the levels of enantiomeric impurities can be measured down to similar to0.01%. The enantiomeric purity of commercial oxazolidiones was determined.
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