After the milling process, the reaction was quenched by adding 6 mL of a sat. NH4Cl(aq.) solution directly to the milling vessel. Subsequently, ether was added, and the contents were transferred to a separation funnel. The product was extracted three times with ether and the combined organic phases were washed once with sat. NH4Cl(aq.) solution, dried over Na2SO4, filtered, and concentrated under reduced pressure. The crude product was further purified via column chromatography.