Dimesitylmethane-derived receptors 12 and 13, incorporating four heterocyclic recognition groups capable of serving as hydrogen bonding sites, were designed to recognize disaccharides. It has been shown by 1H NMR and fluorescence spectroscopic titrations that compounds 12 and 13 display high binding affinities toward α- and β-maltoside, as well as strong di- vsmonosaccharide preference in organic media. Both hydrogen-bonding and interactions of the sugar CH's with the phenyl rings of the receptor contribute to the stabilisation of the receptor–sugar complexes, as indicated by experimental data and molecular modeling calculations.
二甲基
甲烷衍生的受体 12 和 13 包含四个能够充当氢键位点的杂环识别基团,旨在识别二糖。 1H NMR 和荧光光谱滴定表明,化合物 12 和 13 对 α- 和 β-
麦芽糖苷具有高结合亲和力,并且在有机介质中具有强烈的二糖偏爱性。实验数据和分子模型计算表明,氢键以及糖CH与受体苯环的相互作用都有助于受体-糖复合物的稳定。