反应详情

300 mg of 7-((2,2-dimethyl-[1,3]dioxolan-4-yl)methyl)-6-methoxy-1,2,3,4-tetrahydroquinolin-2-one was dissolved in 6 ml of N,N-dimethylformamide. While cooling on ice, 49 mg of 60% sodium hydride was added to the reaction solution, and the obtained mixture was then stirred at room temperature for 30 minutes. Thereafter, 0.29 g of iodomethane was added to the reaction solution while cooling on ice. The obtained mixture was stirred at room temperature for 2 hours. The reaction solution was diluted with ethyl acetate and then washed with a saturated ammonium chloride aqueous solution and a saturated sodium chloride aqueous solution. The organic layer was dried over magnesium sulfate and then concentrated under a reduced pressure. The residue was purified by NH silica gel column chromatography (hexane-ethyl acetate), so as to obtain 310 mg of the subject compound.

1. additionwas added to the reaction solution
2. temperaturewhile cooling on ice
3. stirringThe obtained mixture was stirred at room temperature for 2 hours
4. washwashed with a saturated ammonium chloride aqueous solution
5. dry with materialThe organic layer was dried over magnesium sulfate
6. concentrationconcentrated under a reduced pressure
7. customThe residue was purified by NH silica gel column chromatography (hexane-ethyl acetate)