反应详情

1-t-Butoxycarbonyl-4-(2-methoxyphenyl)piperidine (120 mg, 0.41 mmol) was dissolved in methylene chloride (2 ml). Thereto was added trifluoroacetic acid (2 ml) and the resulting solution was stirred at a room temperature for 1 hour. The solvent was evaporated under a reduced pressure, and the thus obtained residue was mixed with ethyl acetate. This was washed with 1 N sodium hydroxide aqueous solution and saturated brine in that order, and then the solvent was evaporated under a reduced pressure to obtain 82 mg of the aforementioned compound of interest (0.43 mmol, 104% in yield).

1. customThe solvent was evaporated under a reduced pressure
2. additionthe thus obtained residue was mixed with ethyl acetate
3. washThis was washed with 1 N sodium hydroxide aqueous solution and saturated brine in that order
4. customthe solvent was evaporated under a reduced pressure
5. customto obtain