Reactivity‐Based One‐Pot Synthesis of the Tumor‐Associated Antigen N3 Minor Octasaccharide for the Development of a Photocleavable DIOS‐MS Sugar Array

Sweet and light: Readily available thioglycosides with defined relative reactivity values were used as building blocks in a one-pot strategy to synthesize the tumor-associated carbohydrate antigen N3 minor (1). The target molecule was attached covalently to a porous silicon surface through a photocleavable linker for direct characterization in a mass spectrometer equipped with a laser source.