Categoria: unnatural amino acid

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Aqueous self-assembly of short hydrophobic peptides containing norbornene amino acid into supramolecular structures with spherical shape

RSC Adv., 2016,6, 90754-90759 DOI: 10.1039/C6RA17116H formation of supramolecular assembly is reported. The two diastereoisomeric pentapeptides AcAla- NRB-Ala-Aib-AlaNH2 1 and 2 containing the two enantiomers of non-proteinogenic norbornene amino acid (NRB) were synthesized in...

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Ctr-1 Mets7 motif inspiring new peptide ligands for Cu(I)-catalyzed asymmetric Henry reactions under green conditions

RSC Adv., 2016,6, 71529-71533 DOI: 10.1039/C6RA16255J Taking inspiration from the Ctr-1 Mets7 Cu(I) binding motif, effective hybrid catalysts have been developed for asymmetric Henry condensations under green conditions. The introduction of an unnatural dipeptide...

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Dipeptide Nanotubes Containing Unnatural Fluorine-Substituted β2,3-Diarylamino Acid and L‑Alanine as Candidates for Biomedical Applications

 The synthesis and the structural characterization of dipeptides composed of unnatural fluorine-substituted β2,3-diarylamino acid and L-alanine are reported. Depending on the stereochemistry of the β amino acid, these dipeptides are able to self-assemble into proteolytic stable nanotubes....

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1H-Azepine-2-oxo-5-amino-5-carboxylic Acid: A 310 Helix Inducer and an Effective Tool for Functionalized Gold Nanoparticles

A new α,α-disubstituted constrained glutamine analogue has been designed to decorate gold nanoparticles and to induce a 310-helix when inserted in peptides. Using an efficient “one-pot” asymmetric Schmidt reaction between 4-disubstituted-cyclohexanone and hydroxyalkylazides, 1H-azepine-2-oxo-5-amino-5-carboxylic...