“…The general desulfonylation procedure (method A) was followed, using 5 (80 mg, 0.114 mmol), Mg (80 mg, 3.29) in MeOH (5 mL). The reaction mixture was stirred at 50 C for 18 h. Work up, followed by column chromatography (silica gel, 0-70% EtOAc/heptane) afforded 29 (45 mg, 70%) as a colorless oil: 1 3S,4R,5S,6R)-3,4,5-Tris(benzyloxy)-6-(benzyloxymethyl) tetrahydro-2H-pyran-2-yl)acetonitrile (30). The general desulfonylation procedure (method A) was followed, using 26 (35 mg, 0.050 mmol), Mg (40 mgÂ3, added in 2 h intervals) in MeOH (4 mL) and THF (2 mL).…”