反应详情

温度

60 °C

To a solution of methyl 12-cyclohexyl-3-hydroxy-6,7-dihydro-5-oxa-7a-azadibenzo[a,e]azulene-9-carboxylate (0.80 g, 2.04 mmol) in N,N-dimethylformamide (8 ml) were successively added tert-butyl 3-(toluene-4-sulfonyloxy)piperidine-1-carboxylate (1.09 g, 3.07 mmol) and potassium carbonate (0.57 g, 4.08 mmol) at room temperature, and the mixture was stirred overnight at 60° C. The reaction mixture was allowed to cool to room temperature, water was added to the reaction mixture and the mixture was extracted with ethyl acetate. The organic layer was successively washed with water and saturated brine and dried over anhydrous magnesium sulfate. After filtration, the solvent was concentrated under reduced pressure to give methyl 3-(1-tert-butoxycarbonylpiperidin-3-yloxy)-12-cyclohexyl-6,7-dihydro-5-oxa-7a-azadibenzo[a,e]azulene-9-carboxylate (0.68 g). The obtained compound was used for Step 3 without purification.

1. customat room temperature
2. temperatureto cool to room temperature
3. extractionthe mixture was extracted with ethyl acetate
4. washThe organic layer was successively washed with water and saturated brine
5. dry with materialdried over anhydrous magnesium sulfate
6. filtrationAfter filtration
7. concentrationthe solvent was concentrated under reduced pressure