A New Strategy for Solid‐Phase Synthesis of O‐Glycopeptides

By direct glycoside synthesis, activated glycosyl amino acids are accessible. They can be utilized in the solid-phase synthesis for the preparation of glycopeptides with 2-azido-2-deoxy-D-galactose residues. The transformation into the acetamido derivatives and the subsequent deblocking occur on the polymeric support. This method is quite powerful, as the synthesis of the pentaglycosidated octapeptide shown below proves.