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《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2017,129(8):2115-2118
The conformational heterogeneity of backbone N‐substituted peptides limits their ability to adopt stable secondary structures. Herein, we describe a practical synthesis of backbone aminated peptides that readily adopt β‐sheet folds. Data derived from model N‐amino peptides suggest that extended conformations are stabilized through cooperative steric, electrostatic, and hydrogen‐bonding interactions. 相似文献
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Peng Teng Geoffrey M. Gray Mengmeng Zheng Sylvia Singh Xiaopeng Li Lukasz Wojtas Arjan vanderVaart Jianfeng Cai 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2019,131(23):7860-7864
Peptide‐mediated self‐assembly is a prevalent method for creating highly ordered supramolecular architectures. Herein, we report the first example of orthogonal C?X???X?C/C?X???π halogen bonding and hydrogen bonding driven crystalline architectures based on synthetic helical peptides bearing hybrids of l ‐sulfono‐γ‐AApeptides and natural amino acids. The combination of halogen bonding, intra‐/intermolecular hydrogen bonding, and intermolecular hydrophobic interactions enabled novel 3D supramolecular assembly. The orthogonal halogen bonding in the supramolecular architecture exerts a novel mechanism for the self‐assembly of synthetic peptide foldamers and gives new insights into molecular recognition, supramolecular design, and rational design of biomimetic structures. 相似文献