N1-Acetoxy-2, 2, 6, 6-tetramethylpiperidin-4-yl 2, 3, 4, 6-tetra-O-benzyl-α-and-β-d- glucopyranosides (3-α, β) and N1-acetoxy-2, 2, 5, 5-tetramethylpyrrolin-3-oyl 2, 3, 4, 6-tetra- O-benzyl-α-and-β-d-glucopyranosylamines (9-α, β) were synthesized in good yield by Schmidt's glycosylation method. Their subsequent O-debenzylation was proceeded successfully to give the desired products 1-α, and 1-β in good yield, and 2-α in a low yield, ...