Bimodal use of chiral <i>α</i>‐Trifluoromethylalanine in Aib Foldamers: study of the position impact towards the helical screw‐sense preference
作者:Nathan Picois、Lizeth Bodero、Pierre Milbeo、Thierry Brigaud、Grégory Chaume
DOI:10.1002/chem.202400540
日期:——
Introduction of a chiral α-trifluoromethylalanine residue into Aib oligomers proved its effectiveness as a bimodal moiety, acting both as controller and 19F NMR reporter of the helical screw-sense preference. By varying its position along the chain and the nature of the C-terminal capping, our study revealed the stereoelectronic properties of the CF3 group enabling the control of the helical conformation
将手性α -三氟甲基丙氨酸残基引入 Aib 低聚物中,证明了其作为双峰部分的有效性,既充当螺旋感应偏好的控制器又充当19 F NMR 报道分子。通过改变其沿链的位置和 C 末端封端的性质,我们的研究揭示了 CF 3基团的立体电子特性,能够控制螺旋构象。