potent and specific inhibitors of these processes, we have synthesized a variety of sulfated analogs of the trisaccharide recognition epitopes Lewis a [Lea: Galβ1→3(Fucα1→4)GlcNAc] and Lewis x [Lex: Galβ1→4(Fucα1→3)GlcNAc]. Our divergent synthetic route allows for the synthesis of gram quantities of these sulfated trisaccharides from common intermediates in 10–20% overall yields and in no more than
为了阐明导致选择蛋白介导的细胞粘附事件的分子因素,作为产生这些过程的有效和特异性
抑制剂的基础,我们合成了三糖识别表位Lewis a [Le a]的多种
硫酸盐类似物。:Galβ1→3(Fucα1→4)GlcNAc]和Lewis x [Le x:Galβ1→4(Fucα1→3)GlcNAc]。我们多样化的合成路线允许从常见中间体以10–20%的总产率(不超过15个线性步骤)合成克量的这些
硫酸三糖。此外,我们还固定了Le a和Le x的还原端 β-烯丙基糖苷配基的三糖前体,提供每个最终产物的单一端基,并允许进一步修饰成多价衍
生物。