A 100 mL round-bottom flask was charged with a stir bar, 13 (0.65 g, 1.28 mmol, 1 equiv.), and MeOH (6 mL). The reaction flask was cooled to 0 °C using an ice-water bath, and K2CO3 (0.177 g, 1.28 mmol, 1.0 equiv.) was added in one portion. The reaction mixture was warmed to room temperature over a period of 3 hours. Following this time, the reaction was quenched with a saturated aqueous solution of NH4Cl (15 mL), further diluted with water (20 mL), and the mixture was transferred to a separatory funnel. The aqueous layer was extracted with EtOAc (3 x 30 mL). The organic layers were collected, dried over Na2SO4, and concentrated under reduced pressure. The resulting residue was purified using a gradient of 0 to 20% EtOAc/hexanes on silica gel to yield 14 (colorless oil, 0.381 g, 0.818 mmol, 64% yield).