“…A suspension of potassium carbonate (0.69 g, 5 mmol) in acetonitrile (10 mL) containing compound 9 (0.52 g, 2 mmol), potassium iodide (33 mg, 0.2 mmol), and benzyl bromide (0.47 mL, 4 mmol) was heated at 80 °C for 24 h. After cooling to ambient temperature, acetonitrile was evaporated, and the residue was taken up in diethyl ether. The combined organic layers were washed with brine, dried over magnesium sulfate, filtered, and concentrated under reduced pressure.…”