Affinity Enhancement by Dendritic Side Chains in Synthetic Carbohydrate Receptors
作者:Harry Destecroix、Charles M. Renney、Tiddo J. Mooibroek、Tom S. Carter、Patrick F. N. Stewart、Matthew P. Crump、Anthony P. Davis
DOI:10.1002/anie.201409124
日期:2015.2.9
Dendritic side chains have been used to modify the binding environment in anthracene‐based synthetic carbohydrate receptors. Control of length, charge, and branching enabled the positioning of side‐chain carboxylate groups in such a way that they assisted in binding substrates rather than blocking the cavity. Conformational degeneracy in the dendrimers resulted in effective preorganization despite
树突侧链已被用来修饰基于蒽的合成碳水化合物受体的结合环境。长度、电荷和支化的控制使得侧链羧酸酯基团的定位能够帮助结合底物而不是阻塞空腔。尽管系统具有灵活性,但树枝状聚合物的构象简并性导致了有效的预组织。观察到与水中的葡萄糖铵离子的强结合,K a 值高达7000 M -1。尽管存在溶剂竞争且不存在静电相互作用,但对不带电底物(葡萄糖和N-乙酰氨基葡萄糖)的亲和力也得到增强。