A general stereospecific glycosylation is developed that is applicable across a range of monosaccharides. A directing-group-on-leaving-group strategy allows mild donor activation and enables the complete inversion of anomeric configuration with excellent yields. This method can be applied in multistep oligosaccharide syntheses and automated glycan assembly.
- Qing Zhang
- Nils J. Flodén
- Liming Zhang