1: 82 percent / NaBH4 / ethanol; H2O / 1.5 h / Ambient temperature 2: 3.7 g / t-BuOK / dimethylsulfoxide; 2-methyl-propan-2-ol / 1.5 h / 48 °C 3: 1.) NaOMe / 1.) EtOH, 2.) EtOH, reflux, 25 h View Scheme