Beilstein J. Org. Chem.2014,10, 825–831, doi:10.3762/bjoc.10.78
protonated amino acid esters.
Keywords: amino acids; isomer labelled guest method (ILGM); mass spectrometry; molecular recognition; 9,9’-spirobifluorenes; template; Introduction
The separation of constitutionally isomeric amino acids is of practical interest. This is particularly true for leucine (Leu
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Graphical Abstract
Figure 1:
L-Norleucine, L-isoleucine, and L-leucine.