1: 68 percent / H2 / Pd/C / methanol / 12 h / Ambient temperature 2: 1.) NaH / tetrahydrofuran; dimethylformamide / 99 h / 1.) - 15 deg C, 30 min; 2.) rt., 6 h 3: 94 percent / tetra-n-butylammonium fluoride / tetrahydrofuran / 2 h / Ambient temperature View Scheme