1: H2 / 5percent Pd/C / ethanol / 12 h / 3102.9 Torr 2: 91 percent / Et3N / ethyl acetate / 12 h / 15 - 20 °C 3: 49 percent / conc. HCl / dioxane / 16 h / Heating View Scheme

sodium tetrahydroborate in ethanol 2 h; Heating;