Substituent Effects in Synthetic Lectins - Exploring the Role of CH−π Interactions in Carbohydrate Recognition
作者:Nicholas P. Barwell、Anthony P. Davis
DOI:10.1021/jo200755z
日期:2011.8.19
surfaces and saccharide CH groups are common motifs in natural carbohydrate recognition. These CH−π interactions are modeled in “synthetic lectins” which employ oligophenyl units as apolar surfaces. Here we report the synthesis and study of new synthetic lectins with fluoro- and hydroxy-substituted biphenyl units, designed to explore the role of π-electron density in carbohydrate CH−π interactions. We find
芳香族表面与糖基CH基团之间的接触是天然碳水化合物识别中的常见基序。这些CH-π相互作用以“合成凝集素”为模型,该凝集素采用低聚苯基单元作为非极性表面。在这里,我们报道了具有氟取代基和羟基取代联苯单元的新型合成凝集素的合成和研究,旨在探索π电子密度在碳水化合物CH-π相互作用中的作用。我们发现有证据表明,可以通过电子效应来调节识别,但是其他因素(例如腔体水合作用)也很重要,有时在确定结合强度方面占主导地位。