A 100 mL round-bottom flask was charged with 2 (1.00 g, 7.81 mmol, 1 equiv.), imidazole (0.584 g, 8.59 mmol, 1.1 equiv.), and anhydrous DMF (15 mL, Reaction Concentration = 0.5 M). The reaction flask was cooled to 0 °C using an ice-water bath. TBSCl (1.30 g, 8.63 mmol, 1.1 equiv.) and DMAP (190 mg, 1.56 mmol, 0.2 equiv.) were sequentially added. The reaction mixture was stirred for 2 hours at 0 °C. Following this time, the ice-water bath was removed, and the reaction was allowed to warm to room temperature over a period of 3 hours. Following this time, the reaction was diluted with EtOAc (30 mL) and chilled H2O (50 mL) and transferred to a separatory funnel. The organic layer was separated, and the aqueous layer was further extracted with EtOAc (2 X 30 mL). The combined organic layers were washed with saturated aqueous NaCl solution (2 X 20 mL), dried with Na2SO4, and concentrated under reduced pressure. The resulting residue was purified by chromatography on silica gel (hexanes/ethyl acetate, 85/15) to afford 3 (colorless oil, 1.13 g, 4.64 mmol, 60%) and 4 (white solid, 0.151 g, 0.623 mmol, 8%).