1: 78.4 percent / dicyclohexylcarbodiimide (DCC) / tetrahydrofuran / 19 h / 4 - 20 °C 2: acetonitrile / 15 h / Ambient temperature 3: 85.4 percent / H2, AcOH / Pd black / methanol / 3 h / Ambient temperature View Scheme

With  sodium hydroxide in  1,4-dioxane; water T=40°C; 1 h;   

Multi-step reaction with 3 steps 1.1: 53 percent / acetyl chloride / 4 h / 75 °C2.1: 58 percent / 10 percent H2SO4 / methanol / 0.05 h / 100 °C3.1: Na / dioxane / 1 h / 90 - 95 °C3.2: dioxane / 3 h / 60 - 65 °C