本文介绍了使用功能化的低聚蒽酰胺作为构象控制的支架进行分子识别。蒽酰胺的低聚物通过在线性链构象中形成分子内六元氢键而稳定。在其他邻氨基苯甲酸单元上,我们连接了二肽或三肽识别单元,它们有可能在插入的肽链上形成分子内氢键。在CDCl(3)中使用1 H NMR稀释实验,我们已经观察到化学位移的变化与延长的氢键合片二聚体的形成相一致。我们还证明了双丙氨酸官能化的链能够与二肽底物形成离散的氢键复合物,并能够选择性地在其苄基酯上结合己酰基丙氨酸丙氨酸。
Oligoanthranilamides. Non-Peptide Subunits That Show Formation of Specific Secondary Structure
摘要:
A family of novel oligomers based on the anthranilamide nucleus has been prepared and shown to form well-defined secondary structural features. H-1 NMR and X-ray crystallographic techniques have demonstrated that intramolecular hydrogen bonds play a key role in stabilizing both linear sheet and helical conformational forms.