Summary
Racemic α-alkyl-α-amino-acids are difficult solutes to resolve on chiral chromatographic phases derived from proline or pipecolic acid-polyacrylamide. The use of 3-carboxy-1,2,3,4-tetrahydroisoquinoline (porretine) as the chiral selector instead of the former α-amino-acids selectively resolves the α-alkyl-α-amino-acids.
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Jeanneret-Gris, G., Porret, J. & Bernauer, K. L-porretine (L-3-carboxy-1,2,3,4-tetrahydroisoquinoline) as chiral selector for the resolution of chiral α-amino-acids. Chromatographia 29, 449–452 (1990). https://doi.org/10.1007/BF02261393
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DOI: https://doi.org/10.1007/BF02261393