Conformational Behavior of 1:1 [α/α-Hydrazino]mer, 1:1 [α/Aza-β<sup>3</sup>-amino]mer and 1:1 [Aza-β<sup>3</sup>-amino/α]mer Series: Three Series of Foldamers
作者:Samir Acherar、Arnaud Salaün、Philippe Le Grel、Barbara Le Grel、Brigitte Jamart-Grégoire
DOI:10.1002/ejoc.201300567
日期:2013.9
us to assign the secondary structure of three new series of mixed foldamers. 1:1 [α/aza-β3-amino]mers, 1:1 [aza-β3-amino/α]mers and 1:1 [α/α-hydrazino]mers are self-organized in solution by a hydrogen bond network of alternating a γ-turn and a hydrazinoturn. Nevertheless, owing to the donor and acceptor H-bond characters of the amidic NH, 1:1 [α/α-hydrazino]mers can exist as an equilibrium between pseudospiranic
对 1H NMR 光谱数据的分析使我们能够确定三个新系列混合折叠体的二级结构。1:1 [α/aza-β3-amino]mers、1:1 [aza-β3-amino/α]mers 和 1:1 [α/α-hydrazino]mers 在溶液中通过氢键网络自组织γ-转角和肼基转角交替。然而,由于酰胺 NH 的供体和受体 H 键特性,1:1 [α/α-肼] mers 可以作为假螺旋和肼基构象之间的平衡存在。