Two macrocyclic hosts containing benzenedicarboxamide or pyridinedicarboxamide moieties and two 1,8-naphthyridine units linked by a crown ether like chain, have been synthesized and fully characterized by multinuclear NMR spectroscopy. X-ray diffraction analysis is provided for one of the macrocycles including a DMSO guest molecule. Binding constant determination of both hosts with four ureido derivatives, amongst them (+)-biotin methyl ester, was achieved by means of 1H NMR titrations.
通过多核核磁共振光谱法,我们合成了两种大环主化合物,它们含有苯二甲酰胺或
吡啶二甲酰胺分子和两个由类似
冠醚的链连接的
1,8-萘啶单元。其中一个大环包括一个
二甲基亚砜客体分子的 X 射线衍射分析。通过 1H NMR 滴定法,确定了这两种宿主与四种
脲基衍
生物(其中包括 (+)-
生物素甲酯)的结合常数。