The present invention provides zwitterionic oligosaccharides, in particular fragments of the surface polysaccharides fromShigella sonneiandShigella sonneiconjugates comprising them. The present invention also provides protected disaccharides, their process of preparation and their use in the synthesis of zwitterionic oligosaccharides, and conjugates thereof, the dissaccharide repeating unit ofShigella sonneibeing : (I)
本发明提供了双性离子
寡糖,特别是来自Shigella sonnei和Shigella sonnei表面
多糖的片段以及包含它们的结合物。本发明还提供了保护的二糖,其制备过程以及它们在合成双性离子
寡糖和它们的结合物中的应用,其中Shigella sonnei的二糖重复单元为:(I)。