1: 82 percent / ethanol; CHCl3; diethyl ether / 1 h / 0 °C 2: 81 percent / NaOMe / methanol; CHCl3 / 96 h / Ambient temperature 3: LiAlH4 / tetrahydrofuran; diethyl ether / 27 h / Heating 4: pyridine / 1.5 h / Ambient temperature 5: LiAlH4 / tetrahydrofuran; diethyl ether / 2 h / Ambient temperature View Scheme