1: NBS / CHCl3 / Irradiation 2: CHCl3 3: 1.) t-BuOK / 2.) DMF, 120 deg C 4: H2 / Raney Ni / ethanol / 65 - 70 °C / 72400.7 Torr 5: 100 percent / LiOH / tetrahydrofuran; H2O 6: 1.) Li, NH3, 2.) NaCN / 2.) H2O 7: 72 percent / NaI, TMSCl / acetonitrile 8: 89 percent / AgNO3 / methanol; H2O View Scheme