Diastereoselective hydroborations of enantiopure 3, 6-dihydro-2 H-1, 2-oxazines led to dihydroxy-substituted 1, 2-oxazines. Samarium diiodide-induced NO bond cleavage generated 1, 4-amino alcohols which were recyclized to polyhydroxylated pyrrolidines which are potential glycosidase inhibitors.
![1-[2-(trimethylsilyl)ethoxy]-1,2-propadiene Structure](https://image.chemsrc.com/caspic/444/100069-93-0.png)
