1: 98 percent / lithium diisopropylamide / tetrahydrofuran 2: 89 percent / diisobutylaluminium hydride / toluene / 2.5 h / -110 °C 3: 89 percent / tetrahydrofuran / -35 °C 4: 100 percent / acetic acid / H2O / 4 h / Ambient temperature 5: 98 percent / lithium hydroxide monohydrate / H2O; methanol / 24 h / 25 °C 6: triethylamine / CH2Cl2 / 2 h 7: 51 percent / xylene / 11 h / Heating 8: 72 percent / N-chlorosuccinimide, silver nitrate / acetonitrile; H2O / 1.) -5 deg C, 0.5 h, 2.) room temperature, 1 h 9: 95 percent / sodium borohydride / methanol / 0.75 h / -110 °C 10: acetonitrile; pentane / 15 h / Ambient temperature 11: 16.1 mg / anhydrous sodium iodide, chlorotrimethylsilane / acetonitrile / 3.25 h View Scheme