1,2-cis-SELECTIVE FORMATION OF A UNIQUE AMINO-CONTAINING AMINO GLYCOSIDE BY ENDOCYCLIC CLEAVAGE STRATEGY

摘要

2-Acetamido-4-amino-2,4,6-trideoxy-a-D-galactopyranoside (AAT), a unique aminated sugar unit, is often found in zwitterionic polysaccharides. Stereoselective formation of the 1,2-cis linkage of these unique sugar derivatives was achieved by an anomerization reaction based on an endocyclic cleavage process.