1: 1.4 g / pyridine / 15 h / Ambient temperature 2: 1.) thionyl chloride, pyridine, 2.) LAH / 1.) ether 0 deg C, 10 min 3: pyridine 4: LiAlH4 5: pyridine 6: 63 percent / lithium, liq. ammonia / tetrahydrofuran; ethanol / 0.5 h View Scheme