Synthesis and hemagglutination inhibitory properties of mannose-tipped ligands: The effect of terminal phenyl groups and the linker between the mannose residue and the triazole moiety
作者:Hussein Al-Mughaid、Shorooq Nawasreh、Heba Naser、Younis Jaradat、Raed M. Al-Zoubi
DOI:10.1016/j.carres.2022.108559
日期:2022.5
Two families (A, B) of triazole conjugates derived from d-mannose possessing reversed linkage functionality were easily assembled by Cu(I) catalyzed azide-alkyne cycloaddition reaction (CuAAC). The mannose precursors were built with either 3-azidopropyl or propargyl aglycones whereas the phenyl moieties were built with terminal azide or propargyl groups, respectively. In a hemagglutination inhibition
通过 Cu(I) 催化的叠氮化物-炔烃环加成反应 (CuAAC) 可以很容易地组装来自具有反向连接功能的d-甘露糖的两个三唑缀合物家族 (A, B )。甘露糖前体由 3-叠氮丙基或炔丙基糖苷配基构成,而苯基部分分别由末端叠氮基或炔丙基构成。在血凝抑制 (HAI) 试验中,A 族 ( 7a - 11a ),其中甘露糖残基和三唑环之间的接头是三个碳原子,与 B 族 ( 13a - 17a )相比,其活性增强了 3-5 倍。甲基-三唑基部分。代表配体7a,其中末端苯环被酯基取代,Cl 原子表现出最高的抑制活性,HAI 滴度为 8 μM。该化合物可能是进一步设计针对 FimH 菌毛凝集素的有效甘露糖基配体的良好候选者。