The NMR spectrum obtained agreed with previously reported data. In a 100 mL Schlenk flask, 18 (0.68 g, 1.78 mmol) was dissolved in Et2O. A 1M LiAlH4 in Et2O (1.78 mL, 1.78 mmol) solution was added to the flask and placed on ice. The solution was allowed to react at 0 °C for 1 h, after which the reaction was quenched with degassed water. The organic layer was washed one with degassed water (50 mL) before being dried with anhydrous MgSO4 and filtered. The organic component was removed under reduced pressure to yield the final product as a dull yellow gel. Yield: 0.40 g, 83%.