Novel O-acetylated decasaccharides

摘要

The present invention relates to diversely acetylated decasaccharides of formula (I) representative of two repeating units of Shigella flexneri serotype 2a O-antigen, conjugates and method of preparation thereof. These compounds exhibit antigenic properties and are particularly useful for the diagnosis of Shigella infection.
wherein R 1 and R 2 are as defined in claim 1.