1: 96 percent / LiAlH4 / diethyl ether / 1 h / Heating 2: 71 percent / pyridinium dichromate / CH2Cl2 / 36 h 3: 1.) KOtBu, 2.) aq. HCl / 1.) DMF, 3 h, 2.) ether, CH2Cl2, 6 h View Scheme