Screw sense alone can govern enantioselective extension of a helical peptide by kinetic resolution of a racemic amino acid
作者:Liam Byrne、Jordi Solà、Jonathan Clayden
DOI:10.1039/c5cc01790d
日期:——
Helicalpeptides built principally from the achiral quaternary amino acid Aib but with an induced preferred screw-sense exhibit enantioselectivity in their chain-extension reactions when presented with a racemic tertiary amino...
N- versus C-Terminal Control over the Screw-Sense Preference of the Configurationally Achiral, Conformationally Helical Peptide Motif Aib<sub>8</sub>GlyAib<sub>8</sub>
Conformational control over the screw sense of a helical 17-mer of achiral amino acids, Aib(8)GlyAib(8), from a single chiral residue located at the N-terminus is better than that from a single amino acid located at the C-terminus. X-ray crystallography indicates that Aib(8)GlyAib(8) forms the longest 3(10) helical structure observed crystallographically to date.