Synthesis of a Heparan Sulfate Mimetic Library Targeting FGF and VEGF via Click Chemistry on a Monosaccharide Template
作者:Ligong Liu、Caiping Li、Siska Cochran、Shane Jimmink、Vito Ferro
DOI:10.1002/cmdc.201200151
日期:2012.7
6‐azido‐6‐deoxy‐α‐D‐mannopyranoside template was used as a core structure for binding to the angiogenic growth factors FGF‐1, FGF‐2, and VEGF. The core structure was diversified in a rapid, parallel manner by employing the CuI‐catalyzed Huisgen azide–alkyne cycloaddition (“click”) reaction. The diversity was further extended by incorporating a Swern oxidation–Wittig reaction sequence on a click adduct of propargyl
使用脱硫的甲基6-叠氮基-6-脱氧-α- D-甘露吡喃糖苷模板作为与血管生成生长因子FGF-1,FGF-2和VEGF结合的核心结构。通过使用Cu I,以快速,平行的方式使核心结构多样化催化的Huisgen叠氮化物-炔烃环加成(“点击”)反应。通过在炔丙醇的点击加合物上结合Swern氧化-Wittig反应序列进一步扩展了多样性。因此,硫酸化核心通过各种间隔基连接到选定的疏水或极性基序,这些基序设计用于探测生长因子阳离子硫酸乙酰肝素结合位点周围的蛋白质表面,以提高亲和力和选择性。通过表面等离振子共振溶液亲和力测定法测量化合物对生长因子的亲和力。铅化合物与朝向FGF-1都和VEGF(微摩尔的结合亲和力识别ķ d = 84和49μ中号超过FGF-2,分别地)和良好的选择性(29-和51倍,分别地)。