反应详情

Sodium hydride (60% oil base, 61 mg, 1.4 mmol) was added to a DMF solution (2 ml) of 2-[5-fluoro-3-(4-methoxyphenyl)-4-oxo-8-propoxy-4H-quinolin-1-yl]-N-(2-morpholin-4-ylethyl)acetamide (580 mg, 1.16 mmol), and the resulting mixture was stirred at room temperature for 5 minutes. Methyl iodide (230 mg, 1.62 mmol) was added thereto, and the thus-obtained mixture was stirred at room temperature for 15 hours. Water and ethyl acetate were added to the reaction mixture, followed by separation. The thus-obtained organic layer was washed with an aqueous saturated sodium chloride solution and then concentrated under reduced pressure. The residue was purified using silica gel column chromatography (dichloromethane:methanol=30:1→15:1). The purified product was concentrated under reduced pressure, and the residue was recrystallized from ethyl acetate, giving a white powder of 2-[5-fluoro-3-(4-methoxyphenyl)-4-oxo-8-propoxy-4H-quinolin-1-yl]-N-methyl-N-(2-morpholin-4-ylethyl)acetamide (440 mg, yield: 74%).

1. stirringthe thus-obtained mixture was stirred at room temperature for 15 hours
2. customfollowed by separation
3. washThe thus-obtained organic layer was washed with an aqueous saturated sodium chloride solution
4. concentrationconcentrated under reduced pressure
5. customThe residue was purified
6. concentrationThe purified product was concentrated under reduced pressure
7. customthe residue was recrystallized from ethyl acetate