反应详情

Triphenylphosphine (0.127 g, 0.488 mmol)) was added to a solution of 4-(2-fluorophenyl)-3-(hydroxymethyl)-1H-isochromen-1-one (intermediate B4, 40 mg, 0.148 mmol) and perbromomethane (0.161 g, 0.488 mmol) in DCM (0.7 ml, 57.5 mmol), and the resulting mixture was stirred at RT for 24 hrs. The reaction was taken up with MeOH then concentrated under reduced pressure. The crude was purified over a Biotage Silica 10 g SNAP cartridge with a gradient of hexane and EtOAc to give the title compound (37 mg, 75%).

1. concentrationthen concentrated under reduced pressure
2. customThe crude was purified over a Biotage Silica 10 g SNAP cartridge with a gradient of hexane and EtOAc