反应详情

N-Cyclohexyl-2-(ethoxymethyl)-1H-imidazo[4,5-c]quinolin-1-amine (0.51 g, 1.57 mmol) was placed in a 200 mL round bottom flask, purged with N2 and dissolved in dichloromethane (25 mL). MCPBA (0.484 g, 1.96 mmol, 77% max) was added over a S min period. The reaction was stirred at room temperature under N2. After 2 h, analysis by thin layer chromatography (TLC) (SiO2, 95:5 chloroform:methanol) showed complete conversion. The solution was diluted with dichloromethane (15 mL) and 2% sodium carbonate solution (15 mL). The mixture was transferred to a separatory funnel, and the phases were separated. The organic portion was washed sequentially with 2% sodium carbonate solution (15 mL), water (15 mL) and brine (15 mL), dried (Na2SO4), filtered and then concentrated to yield 0.431 g of N-cyclohexyl-2-(ethoxymethyl)-5-oxido-1H-imidazo[4,5-c]quinolin-1-amine as a tan foam.

1. custompurged with N2
2. dissolutiondissolved in dichloromethane (25 mL)
3. customThe mixture was transferred to a separatory funnel
4. customthe phases were separated
5. washThe organic portion was washed sequentially with 2% sodium carbonate solution (15 mL), water (15 mL) and brine (15 mL)
6. dry with materialdried (Na2SO4)
7. filtrationfiltered
8. concentrationconcentrated