Assessing Stabilization through π–π Interactions in Aromatic Oligoamide β-Sheet Foldamers
作者:Laure Sebaoun、Brice Kauffmann、Thomas Delclos、Victor Maurizot、Ivan Huc
DOI:10.1021/ol500512f
日期:2014.5.2
recently introduced aromatic oligoamide β-sheet foldamers based on rigid turn units and short linear strands that undergo intramolecular π–π stacking (Sebaoun, L.; Maurizot, V.; Granier, T.; Kauffmann, B.; Huc, I. J. Am. Chem. Soc.2014, 136, 2168). We now report that conformational stability in these structures can be reached using less rigid turn units and more extensive π–π interactions between longer
我们最近引入了基于刚性转向单元和短线性链的芳香族寡酰胺β-折叠折叠剂,它们经历了分子内π-π堆积(Sebaoun,L .; Maurizot,V .; Granier,T .; Kauffmann,B .; Huc,I 。J. PM。化学会志2014,136,2168)。现在,我们报告说,使用更长的刚性转弯单元和更长的线性链之间更广泛的π-π相互作用,可以达到这些结构的构象稳定性。对于本研究,准备了可变长度的两链片材。它们的构象在溶液中通过1 H NMR评估,并在固态下通过X射线晶体学评估。