1: anhydrous triisopropyl orthoformate; D-glucose With hydrogenchloride in 1,4-dioxane; isopropyl alcohol 3 h; Heating; 2: With sodium hydride in N,N-dimethyl-formamide T=0°C; 1 h; 3: benzyl bromide With tetra-(n-butyl)ammonium iodide in N,N-dimethyl-formamide T=20°C; 24 h; Title compound not separated from byproducts;