Expanding the Scope of a One-Pot Double Displacement Protocol to Access the All-Rare-Sugar-Containing Trisaccharide Unit of Pseudomonas stutzeri OX1

Herein, we have explored a one-pot bis-triflation and regioselective displacement protocol with d-fucose 2,4-diol to access various rare 6-deoxy amino d-sugars. This strategy enabled the first total synthesis of the trisaccharide unit of