The enzyme-directed synthesis is an emerging fragment-based lead discovery approach in which the biological target is able to assemble its own multidentate ligands from a pool of building blocks. Here, we report for the first time the use of the human acetylcholinesterase (AChE) as an enzyme for the design and synthesis of new potent heterodimeric huprine-based inhibitors. Both the specific click chemistry site within the protein and the regioselectivity of the Huisgen cycloaddition observed suggest promising alternatives in the design of efficient mono- and dimeric ligands of AChE. Finally, a detailed computational modelling of the click reaction was conducted to further understand the origin of this TGS selectivity.
酶指导合成是一种新兴的以片段为基础的先导化合物发现方法,在这种方法中,
生物靶标能够从构件库中组装出自己的多叉
配体。在这里,我们首次报道了利用人体
乙酰胆碱酯酶(AChE)作为酶来设计和合成新的强效异二聚体
羽扇豆碱类
抑制剂。蛋白质内的特异性点击
化学位点和观察到的惠斯根环化反应的区域选择性都表明,在设计 AChE 的高效单体和二聚体
配体时,有希望找到替代方法。最后,我们对点击反应进行了详细的计算建模,以进一步了解这种 TGS 选择性的来源。