New Polyhydroxylated Pyrrolidines Derived from Enantiopure 3,6-Dihydro-2H-1,2-oxazines

Abstract
Diastereoselective hydroborations of enantiopure 3,6-dihydro-2H-1,2-oxazines led to dihydroxy-substituted 1,2-oxazines. Samarium diiodide-induced N−O bond cleavage generated 1,4-amino alcohols which were recyclized to polyhydroxylated pyrrolidines which are potential glycosidase inhibitors.