For investigations on the biological functions of oligosaccharides and peptidomimetics, new asparagine-based mono- and disaccharides containing glycopeptides were prepared in solution. The applicability of two common peptide coupling reagents, using an orthogonal Fmoc/t-Bu strategy along with acetyl protecting groups for the carbohydrate moiety, was studied. Thus, the prepared libraries of glycopeptides were designed as model systems of cell surfaces for future investigations by combined preparative mass spectroscopy and scanning tunneling microscopy (STM) using soft-landing electrospray beam deposition (ES-IBD), on metal surfaces.

中文翻译：

---

合成新的基于天冬酰胺的糖肽，用于未来的扫描隧道显微镜研究。

为了研究寡糖和拟肽的生物学功能，在溶液中制备了新的含有糖肽的天冬酰胺基单糖和二糖。使用正交的Fmoc / t- Bu策略以及碳水化合物部分的乙酰基保护基，研究了两种常见的肽偶联剂的适用性。因此，将制备的糖肽文库设计为细胞表面的模型系统，以供将来通过在金属表面上使用软着陆电喷雾束沉积（ES-IBD）的组合制备质谱和扫描隧道显微镜（STM）进行研究。