1: 1.) BH3*THF, 2.) NaOAc / 1.) glyme, RT, 72 h, 2.) n-BuOH, reflux, 72 h 2: 1.93 g / Na2CO3, KI / dimethylformamide / 16 h / Ambient temperature 3: 1.75 g / LAH / tetrahydrofuran / 8 h / Heating 4: 54 percent / tetrahydrofuran / 0.5 h / Heating View Scheme