Abstract
1,2-cis-α-Stereoselective glycosylations were conducted using a 1,2-anhydroglucose donor and mono-ol acceptors in the presence of a glycosyl-acceptor-derived borinic ester. Reactions proceeded smoothly under mild conditions to provide the corresponding α-glycosides with high stereoselectivity in moderate to high yields. In addition, the present method was applied successfully to the direct glycosylation of a protected ceramide acceptor and the total synthesis of natural glycosphingolipids (GSLs).
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