Conformational Control of Selectivity and Stability in Hybrid Amide/Urea Macrocycles
作者:Simon J. Brooks、Sergio E. García-Garrido、Mark E. Light、Pamela A. Cole、Philip A. Gale
DOI:10.1002/chem.200601647
日期:2007.4.16
properties of two similar hybrid amide/ureamacrocyclescontaining either a 2,6-dicarboxamidophenyl or a 2,6-dicarboxamidopyridine group are compared. Significant differences in anion affinity and mode of interaction with anions are attributed to the presence of intramolecular hydrogen bonds in the pyridine system. In fact, remarkably, the phenyl macrocycle undergoes amide hydrolysis under neutral conditions