1: diisobutylaluminium hydride / tetrahydrofuran; n-heptane / 4.5 h / -78 - 0 °C / Inert atmosphere 2: triethylamine / dichloromethane / 0 °C / Inert atmosphere 3: lithium triethylborohydride / tetrahydrofuran / -30 - 20 °C / Inert atmosphere 4: palladium 10 on activated carbon; hydrogen / methanol / 1500.15 Torr 5: dibromo-difluoro-methane; tert-butyl alcohol / dichloromethane / 1.5 h / 60 °C / Inert atmosphere; Microwave irradiation View Scheme