反应详情

A solution of N-(4-chlorobenzyl)-4-hydroxy-6-(hydroxymethyl)-3-quinolinecarboxamide (1.71 gm) from Preparation No. 9 in DMF (50 mL) at 0° C. under a drying tube is treated with 4-dimethylaminopyridine (0.12 gm), 2,4,6-collidine (1.05 mL) and methanesulfonylchloride (0.60 mL). The mixture is allowed to slowly warm to room temperature overnight. The reaction mixture is then treated with morpholine (8.0 mL) and stirred for 4 hrs. The reaction mixture is poured into water (250 mL) and extracted with dichloromethane (5×50 mL). The combined organic layers are washed with water, brine, dried (Na2SO4) and concentrated under reduced pressure. The crude product is purified by recrystallization from methanol-acetonitrile (1/1, 150 mL) to afford 1.7 gm of the title compound as a white solid.

1. extractionextracted with dichloromethane (5×50 mL)
2. washThe combined organic layers are washed with water, brine
3. dry with materialdried (Na2SO4)
4. concentrationconcentrated under reduced pressure
5. customThe crude product is purified by recrystallization from methanol-acetonitrile (1/1, 150 mL)