1: 71 percent / trimethylsilyl trifluoromethanesulfonate / acetonitrile / 12 h / 55 °C 2: 86 percent / ethanolic NaOH / pyridine / 0.17 h / Ambient temperature 3: NaIO4 / tetrahydrofuran; H2O / 2 h / Ambient temperature 4: NaBH4 / methanol / 0.5 h / Ambient temperature 5: 68 percent / H2 / Pd black / ethanol / 9 h / 45 °C / 760 Torr View Scheme