1: H2 / Pd/C / ethanol / 1 h / 20 °C 2: ethanol / 1 h / 20 °C 3: 2.30 g / H2 / ethanol / 2 h View Scheme

1: 91 percent / KOH / methanol 2: 88 percent / pyridine / 2 h / 20 °C 3: 63 percent / sodium azide / dimethylformamide / 2 h / 40 °C 4: H2 / Pd/C / ethanol / 1 h / 20 °C 5: ethanol / 1 h / 20 °C 6: 2.30 g / H2 / ethanol / 2 h View Scheme

1: 79 percent / aq. ammonia / tetrahydrofuran / 1 h / 20 °C 2: 91 percent / KOH / methanol 3: 88 percent / pyridine / 2 h / 20 °C 4: 63 percent / sodium azide / dimethylformamide / 2 h / 40 °C 5: H2 / Pd/C / ethanol / 1 h / 20 °C 6: ethanol / 1 h / 20 °C 7: 2.30 g / H2 / ethanol / 2 h View Scheme

1: 90 percent / pyridine 2: 85 percent / chlorosulfonic acid / 1 h / 0 °C 3: 79 percent / aq. ammonia / tetrahydrofuran / 1 h / 20 °C 4: 91 percent / KOH / methanol 5: 88 percent / pyridine / 2 h / 20 °C 6: 63 percent / sodium azide / dimethylformamide / 2 h / 40 °C 7: H2 / Pd/C / ethanol / 1 h / 20 °C 8: ethanol / 1 h / 20 °C 9: 2.30 g / H2 / ethanol / 2 h View Scheme

1: 85 percent / chlorosulfonic acid / 1 h / 0 °C 2: 79 percent / aq. ammonia / tetrahydrofuran / 1 h / 20 °C 3: 91 percent / KOH / methanol 4: 88 percent / pyridine / 2 h / 20 °C 5: 63 percent / sodium azide / dimethylformamide / 2 h / 40 °C 6: H2 / Pd/C / ethanol / 1 h / 20 °C 7: ethanol / 1 h / 20 °C 8: 2.30 g / H2 / ethanol / 2 h View Scheme

1: 21 percent / glucose / baker's yeast / H2O / 72 h / 20 °C 2: 86 percent / H2; HClO4 / Pd/C / ethanol / 20 °C / atmospheric pressure 3: 90 percent / pyridine 4: 85 percent / chlorosulfonic acid / 1 h / 0 °C 5: 79 percent / aq. ammonia / tetrahydrofuran / 1 h / 20 °C 6: 91 percent / KOH / methanol 7: 88 percent / pyridine / 2 h / 20 °C 8: 63 percent / sodium azide / dimethylformamide / 2 h / 40 °C 9: H2 / Pd/C / ethanol / 1 h / 20 °C 10: ethanol / 1 h / 20 °C 11: 2.30 g / H2 / ethanol / 2 h View Scheme

1: 86 percent / H2; HClO4 / Pd/C / ethanol / 20 °C / atmospheric pressure 2: 90 percent / pyridine 3: 85 percent / chlorosulfonic acid / 1 h / 0 °C 4: 79 percent / aq. ammonia / tetrahydrofuran / 1 h / 20 °C 5: 91 percent / KOH / methanol 6: 88 percent / pyridine / 2 h / 20 °C 7: 63 percent / sodium azide / dimethylformamide / 2 h / 40 °C 8: H2 / Pd/C / ethanol / 1 h / 20 °C 9: ethanol / 1 h / 20 °C 10: 2.30 g / H2 / ethanol / 2 h View Scheme

1: ethanol / 1 h / 20 °C 2: 2.30 g / H2 / ethanol / 2 h View Scheme

1: 70 percent / NaH / various solvent(s); dimethylformamide 2: O3 / CH2Cl2; methanol / -78 °C 3: ethanol / 1 h / 20 °C 4: 2.30 g / H2 / ethanol / 2 h View Scheme

1: O3 / CH2Cl2; methanol / -78 °C 2: ethanol / 1 h / 20 °C 3: 2.30 g / H2 / ethanol / 2 h View Scheme