1: 1.) KH / 1.) DMF, RT, 45 min, 2.) DMF, RT, 1h 2: 83 percent / LiAlH4 / tetrahydrofuran / 1 h / Ambient temperature 3: 1.) NaH 4: 81 percent / Bu3SnH, AIBN / benzene / 5 h / Heating 5: 1.) POCl3 / 1.) -5 deg C, 30 min, 2.) 35 deg C, 1 h 6: 81 percent / H2 / 10percent Pd/C / tetrahydrofuran / 12 h / 2327.2 Torr 7: 85 percent / potassium nitrodisulfonate / H2O; acetone / 2 h 8: 89 percent / NaBH4 / methanol / 2 h View Scheme