1: 91 percent / CH2Cl2 / 1.) -78 deg C, 1 h, 2.) 20 deg C, 1 h 2: 97 percent / 30percent hydrogen peroxide / CH2Cl2 / 0.5 h 3: 100 percent / aluminum isopropoxide / propan-2-ol / Heating 4: pyridine / 15 h / 20 °C 5: tetrakis(triphenylphosphine)palladium(0) / tetrahydrofuran / 24 h / 100 °C 6: trifluoroacetic acid / CH2Cl2 / 0.5 h 7: 99 percent / N-methylmorpholine, osmium tetraoxide / tetrahydrofuran; H2O / 24 h / 20 °C 8: 1.) methyl sulfide, N-chlorosuccinimide, 2.) triethylamine / 1.) dichloromethane, -40 deg C, 1 h, 2.) from -40 to 20 deg C, 1.5 h 9: 97 percent / trifluoromethanesulfonic acid / CH2Cl2 / 24 h 10: 88 percent / lithium aluminum hydride / tetrahydrofuran / 1 h / Heating View Scheme