1: 1.) Na, ethanol / 1.) 10 min, 2.) DMF, from 110 to 120 deg C 2: H2 / 10percent Pd/C / ethanol / 4 h / 60 - 65 °C / 760 Torr 3: AcOH, H2O / 3 h / 40 - 45 °C View Scheme