1: 1.) L-Selectride, 2.) 30percent hydrogen peroxide, 3 N sodium hydroxide, 3.) p-toluenesulfonic acid 2: 67 percent / silver oxide / acetonitrile / 46 h / Heating 3: 98 percent / lithium diisopropylamide / tetrahydrofuran 4: 89 percent / diisobutylaluminium hydride / toluene / 2.5 h / -110 °C 5: 89 percent / tetrahydrofuran / -35 °C 6: 100 percent / acetic acid / H2O / 4 h / Ambient temperature 7: 98 percent / lithium hydroxide monohydrate / H2O; methanol / 24 h / 25 °C 8: triethylamine / CH2Cl2 / 2 h 9: 51 percent / xylene / 11 h / Heating 10: 72 percent / N-chlorosuccinimide, silver nitrate / acetonitrile; H2O / 1.) -5 deg C, 0.5 h, 2.) room temperature, 1 h 11: 95 percent / sodium borohydride / methanol / 0.75 h / -110 °C 12: acetonitrile; pentane / 15 h / Ambient temperature 13: 16.1 mg / anhydrous sodium iodide, chlorotrimethylsilane / acetonitrile / 3.25 h View Scheme