作者:Sandrine Lamandé-Langle、Charlotte Collet、Raphaël Hensienne、Christine Vala、Françoise Chrétien、Yves Chapleur、Amel Mohamadi、Patrick Lacolley、Véronique Regnault
DOI:10.1016/j.bmc.2014.09.056
日期:2014.12
'Click' glycosylation of cysteine-containing peptides were carried out in good yield by Copper(I)-catalyzed Azide-Alkyne Cycloaddition (CuAAC). For that peptides were functionalized though direct propargylation of the cysteine residue allowing their use in CuAAC with suitable free or protected azido sugars of gluco, manno and galacto configuration. Among these free and protected glycopeptides a series of 'glycoRGD' peptides were obtained and submitted to in vitro platelet aggregation tests, showing that the pseudoglycosylation of the adhesion sequence lowers the IC50 value and thus could improve the in vivo pharmacokinetic properties. (C) 2014 Elsevier Ltd. All rights reserved.
半胱氨酸肽通过Cu(I)催化的叠氮化物-炔烃环加成(CuAAC)实现了"点击"糖基化,产率良好。此方法中,肽通过半胱氨酸残基的直接炔基化进行官能化,使其可用于与具有gluco、manno和galacto构型的合适叠氮化糖(自由或保护状态)进行CuAAC反应。在所获得的自由和保护型糖肽中,一系列"glycoRGD"肽被制备并进行了体外血小板聚集测试,结果显示伪糖基化的黏附序列降低了IC50值,从而可能改善体内药代动力学特性。©2014 Elsevier Ltd. 保留所有权利。