1: 1.) n-BuLi / 1.) THF, hexane, 0 deg C, 15 min, 2.) THF, hexane, 0 deg C, 2 h 2: 97.7 percent / NaH, Pd(PPh3)4 / tetrahydrofuran / -78 - 20 °C 3: DIBAL / toluene / 1 h / 0 °C 4: pyridine / 20 h / Ambient temperature 5: DBN / diethyl ether / Ambient temperature 6: Na2S2O4, NaHCO3, H2O, Aliquot 336 / cyclohexane / Heating 7: H2 / 10percent Pt/C / ethyl acetate / 8 °C / 25857.4 Torr 8: H2 / 10percent Pd/C / ethanol; tetrahydrofuran / 3 h / 8 °C / 3102.9 Torr View Scheme