Water → HCID 23152338, compound

Participants

Reaction Conditions

Reaction Steps

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.

Provenance & Evidence