1: 1.27 g / 2 N HCl / tetrahydrofuran / 16 h / 25 °C 2: pyridine / 16 h / 25 °C 3: 1 N NaOH / methanol / 25 °C View Scheme

1: aq. HCl / tetrahydrofuran / 16 h / Ambient temperature 2: 20percent aq. NaOH / methanol / 0.5 h / 100 °C View Scheme

2: triethylamine / CHCl3 / 0.5 h / Ambient temperature 3: tetrazole / acetonitrile; tetrahydrofuran / 3 h / Ambient temperature 4: t-butyl hydroperoxide / tetrahydrofuran; 2-methyl-propan-2-ol / 2 h 5: trimethylamine / toluene / 12 h / Ambient temperature 6: tetrabutylammonium fluoride / tetrahydrofuran / 48 h / Ambient temperature 7: sodium deoxycholate / 37 °C / phospholipaze in HEPES buffer (pH 8.0) View Scheme

1: 1.27 g / 2 N HCl / tetrahydrofuran / 16 h / 25 °C 2: pyridine / 16 h / 25 °C 3: 92 percent / 1 N NaOH / methanol / 16 h / 25 °C View Scheme

2: triethylamine / CHCl3 / 0.5 h / Ambient temperature 3: tetrazole / acetonitrile; tetrahydrofuran / 3 h / Ambient temperature 4: t-butyl hydroperoxide / tetrahydrofuran; 2-methyl-propan-2-ol / 2 h 5: trimethylamine / toluene / 12 h / Ambient temperature 6: tetrabutylammonium fluoride / tetrahydrofuran / 48 h / Ambient temperature 7: sodium deoxycholate / 37 °C / phospholipaze in HEPES buffer (pH 8.0) View Scheme