A mixture of the phenol from step B (13.62 g, 55.14 mmol) and 2-bromomethylquinoline (12.85 g, 1.05 mol eq.) and anhydrous K2CO3 (15.22 g, 2 mol. eq.) in DMF (40 ml) was stirred at RT for 48 hours. The mixture was then poured onto ice/water and after all the ice had melted, the brown solid was collected and air-dried. The dried material was passed through a plug of silica (using EtOAc/hexane (1:3) as eluent) to remove the color; yield: 19 g, 88%. Recrystallization from EtOH afforded 14.17g of pure title compound, m.p. 131°-132° C.
