1: 5percent aq. sodium hypochloride, triethylamine / CH2Cl2 / 2 h / 0 °C 2: 76.5 percent / H2 / Raney nickel / acetic acid; methanol; H2O / 2 h 3: 89 percent / aluminum oxide / benzene / 0.25 h / Heating 4: 94 percent / cerium(III) chloride heptahydrate, sodium borohydride / methanol / 0.17 h / Ambient temperature 5: 42 percent / aluminum oxide / toluene / 0.5 h / Heating 6: 77 percent / p-toluenesulfonic acid monohydrate / methanol / 12 h / Ambient temperature 7: 75 percent / 1,3-dicyclohexylcarbodiimide, 4-(dimethylamino)pyridine / CH2Cl2 / 72 h / Ambient temperature 8: 10percent aq. HCl / tetrahydrofuran / 4 h / 50 °C 9: pyridinium chlorochromate, aluminum oxide / CH2Cl2 / 8 h / Ambient temperature 10: 30 percent / hydrofluoric acid / acetonitrile; H2O / 8 h / 45 °C View Scheme

1: 76.5 percent / H2 / Raney nickel / acetic acid; methanol; H2O / 2 h 2: 89 percent / aluminum oxide / benzene / 0.25 h / Heating 3: 94 percent / cerium(III) chloride heptahydrate, sodium borohydride / methanol / 0.17 h / Ambient temperature 4: 42 percent / aluminum oxide / toluene / 0.5 h / Heating 5: 77 percent / p-toluenesulfonic acid monohydrate / methanol / 12 h / Ambient temperature 6: 75 percent / 1,3-dicyclohexylcarbodiimide, 4-(dimethylamino)pyridine / CH2Cl2 / 72 h / Ambient temperature 7: 10percent aq. HCl / tetrahydrofuran / 4 h / 50 °C 8: pyridinium chlorochromate, aluminum oxide / CH2Cl2 / 8 h / Ambient temperature 9: 30 percent / hydrofluoric acid / acetonitrile; H2O / 8 h / 45 °C View Scheme

1: 90 percent / Li, NH3 (liquid) / tetrahydrofuran 2: 87 percent / pyridine / 1 h / 25 °C 3: toluene / 7 h / Irradiation 4: imidazole / dimethylformamide / 23 °C 5: 1.) O3, 2.) dimethyl sulfide / 1.) methanol 6: CH2Cl2 / 18 h 8: 10percent aq. HCl / tetrahydrofuran / 0.33 h / 45 - 55 °C 9: Ag2CO3/Celite / toluene / 2 h / 95 °C View Scheme

1: 95 percent / LiAlH4 / diethyl ether / -15 °C 2: 90 percent / Li, NH3 (liquid) / tetrahydrofuran 3: 87 percent / pyridine / 1 h / 25 °C 4: toluene / 7 h / Irradiation 5: imidazole / dimethylformamide / 23 °C 6: 1.) O3, 2.) dimethyl sulfide / 1.) methanol 7: CH2Cl2 / 18 h 9: 10percent aq. HCl / tetrahydrofuran / 0.33 h / 45 - 55 °C 10: Ag2CO3/Celite / toluene / 2 h / 95 °C View Scheme

1: 1.) sodium hydride, 2.) 1-<(2,4,6-triisopropylphenyl)sulfonyl>imidazole / 1.) HMPA, from 0 deg C to 25 deg C, 2 h, 2.) HMPA, THF, from -23 deg C to 0 deg C, 3 h 2: 95 percent / LiAlH4 / diethyl ether / -15 °C 3: 90 percent / Li, NH3 (liquid) / tetrahydrofuran 4: 87 percent / pyridine / 1 h / 25 °C 5: toluene / 7 h / Irradiation 6: imidazole / dimethylformamide / 23 °C 7: 1.) O3, 2.) dimethyl sulfide / 1.) methanol 8: CH2Cl2 / 18 h 10: 10percent aq. HCl / tetrahydrofuran / 0.33 h / 45 - 55 °C 11: Ag2CO3/Celite / toluene / 2 h / 95 °C View Scheme

1: 87 percent / pyridine / 1 h / 25 °C 2: toluene / 7 h / Irradiation 3: imidazole / dimethylformamide / 23 °C 4: 1.) O3, 2.) dimethyl sulfide / 1.) methanol 5: CH2Cl2 / 18 h 7: 10percent aq. HCl / tetrahydrofuran / 0.33 h / 45 - 55 °C 8: Ag2CO3/Celite / toluene / 2 h / 95 °C View Scheme

1: sodium borohydride / methanol / 0.5 h / 0 °C 2: pyridine / 18 h 3: 1.) sodium hydride, 2.) 1-<(2,4,6-triisopropylphenyl)sulfonyl>imidazole / 1.) HMPA, from 0 deg C to 25 deg C, 2 h, 2.) HMPA, THF, from -23 deg C to 0 deg C, 3 h 4: 95 percent / LiAlH4 / diethyl ether / -15 °C 5: 90 percent / Li, NH3 (liquid) / tetrahydrofuran 6: 87 percent / pyridine / 1 h / 25 °C 7: toluene / 7 h / Irradiation 8: imidazole / dimethylformamide / 23 °C 9: 1.) O3, 2.) dimethyl sulfide / 1.) methanol 10: CH2Cl2 / 18 h 12: 10percent aq. HCl / tetrahydrofuran / 0.33 h / 45 - 55 °C 13: Ag2CO3/Celite / toluene / 2 h / 95 °C View Scheme

1: imidazole / dimethylformamide / 23 °C 2: 1.) O3, 2.) dimethyl sulfide / 1.) methanol 3: CH2Cl2 / 18 h 5: 10percent aq. HCl / tetrahydrofuran / 0.33 h / 45 - 55 °C 6: Ag2CO3/Celite / toluene / 2 h / 95 °C View Scheme

1: 1.) O3, 2.) dimethyl sulfide / 1.) methanol 2: CH2Cl2 / 18 h 4: 10percent aq. HCl / tetrahydrofuran / 0.33 h / 45 - 55 °C 5: Ag2CO3/Celite / toluene / 2 h / 95 °C View Scheme

1: CH2Cl2 / 18 h 3: 10percent aq. HCl / tetrahydrofuran / 0.33 h / 45 - 55 °C 4: Ag2CO3/Celite / toluene / 2 h / 95 °C View Scheme