Adducts of peptides and arylboronic acids are attractive tools for the selective recognition of carbohydrates. These structures resemble at least some of the properties of natural carbohydrate binders and have therefore been termed lectin mimetics or boronolectins. In this report, we describe the synthesis of appropriately functionalized benzoboroxoles as modular components for the assembly of boronolectins. These benzoboroxoles have been prepared in a few steps from readily available starting materials. In conclusion, versatile functionalized benzoboroxoles are reported that can be used for the construction of larger conjugates by peptide coupling or copper-mediated cycloadditions (click reactions) with azides.
High-Affinity Carbohydrate Binding by Trimeric Benzoboroxoles Measured on Carbohydrate Arrays
作者:Dorith Claes、Elisabeth Memmel、Malte Holzapfel、Jürgen Seibel、Wolfgang Maison
DOI:10.1002/cbic.201402297
日期:2014.11.3
report the synthesis of trivalent boronic acids and the observation of high binding affinities of these boronolectins on determination of KDsurf values for their interaction with α‐Gal on glass chips. The observed KDsurf values (49 and 104 nM) are comparable to the KDsurf values of natural lectins, such as that of ConA binding to immobilized α‐Man (79 nM).
甜的硼烷素:我们报道了三价硼酸的合成,并观察到这些硼烷素具有高结合亲和力,可确定它们与玻璃碎片上α-Gal相互作用的K Dsurf值。观察到的K Dsurf值(49和104 n M)与天然凝集素的K Dsurf值相当,例如ConA与固定的α-Man结合的K Dsurf值(79 n M)。