Synthesis and biological evaluation of mannose-6-phosphate-coated multivalent dendritic cluster glycosides
作者:Oruganti Srinivas、S. Radhika、Narasimha Murthy Bandaru、Siva Kumar Nadimpalli、Narayanaswamy Jayaraman
DOI:10.1039/b506348e
日期:——
The synthesis of multivalent dendritic cluster glycosides of mannopyranosyl-6-phosphate is presented. Poly(amido amine)-based dendrimers of 0.5–3.5 generations, containing carboxylic acid peripheral functionalities, were utilized so as to install 4, 8, 16 and 32 mannopyranosyl-6-phosphate residues at the peripheries of the dendrimers. Amide bond formation between an amine-tethered mannopyranosyl-6-phosphate monomer unit and carboxylic acid-functionalized dendrimers was conducted to synthesize the dendritic cluster glycosides. The constitutions of the Man-6-P-containing dendrimers were assessed by 1H, 13C and 31P NMR spectroscopies and the sugar content analysis by a resorcinol assay. Preliminary biological studies with few newly synthesized Man-6-P-containing dendrimers showed that these compounds could bind the purified goat liver mannose 6-phopshate receptor (MPR 300) protein.
本文介绍了甘露吡喃糖基-6-磷酸多价树枝状簇苷的合成。利用含有羧酸外围官能团的 0.5-3.5 代聚(氨基胺)树枝状聚合物,在树枝状聚合物的外围安装了 4、8、16 和 32 个甘露糖基-6-磷酸残基。在胺拴的甘露吡喃糖基-6-磷酸单体单元和羧酸官能化树枝状聚合物之间形成酰胺键,从而合成了树枝状簇苷。通过 1H、13C 和 31P NMR 光谱评估了含 Man-6-P 的树枝状聚合物的结构,并通过间苯二酚测定法分析了糖含量。对少数新合成的含 Man-6-P 的树枝状化合物进行的初步生物学研究表明,这些化合物能与纯化的山羊肝甘露糖 6-opshate受体(MPR 300)蛋白结合。