Radical Cyclization in Heterocycle Synthesis. Part 9: A Novel Synthesis of Aminocyclitols and Related Compounds via Stannyl Radical Cyclization of Oxime Ethers Derived from Sugars

Stannyl radical addition–cyclization of oxime ethers derived from d-glucose, d-galactose, and d-xylose proceeded smoothly to afford alkoxyamino alcohols which were effectively converted into two types of glycosidase inhibitors or its candidates such as aminocyclitols, 1-deoxynojirimycin, and 1-deoxygalactostatin via reductive ring-expansion of trans alkoxyamino alcohols.