By mimicking the scaffolds of oligopyridine-based ligands, triurea and tetraurea receptors have been developed for sulfate binding. The triureas (L-1, L-2) show stronger binding of sulfate than tetraureas (L-3, L-4) in DMSO because of their better conformational complementarity with sulfate, while the tetraureas display better "water tolerance" benefiting from the chelate effect and hydrophobic effect.
作者:Chuandong Jia、Biao Wu、Shaoguang Li、Xiaojuan Huang、Xiao-Juan Yang
DOI:10.1021/ol102221x
日期:2010.12.17
By mimicking the scaffolds of oligopyridine-based ligands, triurea and tetraurea receptors have been developed for sulfate binding. The triureas (L-1, L-2) show stronger binding of sulfate than tetraureas (L-3, L-4) in DMSO because of their better conformational complementarity with sulfate, while the tetraureas display better "water tolerance" benefiting from the chelate effect and hydrophobic effect.