反应详情

To a solution of Et3N (0.31 mL, 2.20 mmol) and thiazol-5-amine hydrochloride (0.2 g, 1.46 mmol) from example 1.2 in DCM (10 mL) was added Ac2O (0.21 mL, 2.20 mmol). The mixture was stirred at room temperature for 3 h and then concentrated. The resulting mixture was deposited onto silica gel and loaded onto a silica gel column and eluted with EA to give the title compound (0.14 g, 0.98 mmol, 70%).

1. concentrationconcentrated
2. washeluted with EA