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Synthesis and analysis of the conformational preferences of 5-aminomethyloxazolidine-2,4-dione scaffolds: first examples of β(2)- and β(2, 2)-homo-Freidinger lactam analogues
Constrained peptidomimetic scaffolds are of considerable interest for the design of therapeutically useful analogues of bioactive peptides. We present the single-step cyclization of (S)- or (R)-α-hydroxy-β(2)- or α-substituted-α-hydroxy-β(2, 2)-amino acids already incorporated within oligopeptides t...
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Published in: | Chemistry : a European journal 2014-10, Vol.20 (41), p.13390-13404 |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Online Access: | Get full text |
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Summary: | Constrained peptidomimetic scaffolds are of considerable interest for the design of therapeutically useful analogues of bioactive peptides. We present the single-step cyclization of (S)- or (R)-α-hydroxy-β(2)- or α-substituted-α-hydroxy-β(2, 2)-amino acids already incorporated within oligopeptides to 5-aminomethyl-oxazolidine-2,4-dione (Amo) rings. These scaffolds can be regarded as unprecedented β(2)- or β(2, 2)-homo-Freidinger lactam analogues, and can be equipped with a proteinogenic side chain at each residue. In a biomimetic environment, Amo rings act as inducers of extended, semi-bent or folded geometries, depending on the relative stereochemistry and the presence of α-substituents. |
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ISSN: | 1521-3765 |
DOI: | 10.1002/chem.201402519 |