A Potent and Highly Selective Inhibitor of Human α-1,3-Fucosyltransferase via Click Chemistry
作者:Lac V. Lee、Michael L. Mitchell、Shih-Jung Huang、Valery V. Fokin、K. Barry Sharpless、Chi-Huey Wong
DOI:10.1021/ja0302836
日期:2003.8.1
Potent inhibitors of fucosyltransferases, and glycosyltransferases in general, have been elusive due to the inherent barriers surrounding the family of glycosyltransfer reactions. The problems of weak substrate affinity and low catalytic proficiency of fucosyltransferase was offset by recruiting additional binding features, in this case hydrophobic interactions, to produce a high affinity inhibitor
由于围绕糖基转移反应家族的固有障碍,岩藻糖基转移酶和糖基转移酶的强效抑制剂一直难以捉摸。底物亲和力弱和岩藻糖基转移酶催化效率低的问题通过招募额外的结合特征(在这种情况下为疏水相互作用)来产生高亲和力抑制剂 24,Ki = 62 nM 得到了抵消。该分子是从包含 85 种化合物的 GDP-三唑文库中鉴定出来的,这些化合物是通过 Cu(I) 催化的叠氮化物和乙炔反应物之间的 [2 + 3] 环加成反应产生的,然后在没有产物分离的情况下进行原位筛选。