1: hydrazine hydrate / ethanol / 3 h / Heating 2: 5.06 g / NaHCO3 / ethanol; CH2Cl2; H2O / 0.5 h / 20 °C 3: 78 percent / p-toluenesulfonic acid / toluene / 1 h / Heating 4: N-methylmorpholine N-oxide; osmium tetraoxide / tetrahydrofuran; acetone; H2O / 14 h / 20 °C 5: 234 mg / sodium periodate / tetrahydrofuran; methanol; H2O / 3 h / 20 °C 6: 48 percent / sodium cyanide; manganese(IV) oxide / 0.5 h / 20 °C View Scheme