Ethanol → 4-((1-(tert-Butoxycarbonyl)piperidin-4-yl)oxy)benzoic acid
Reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([O:14][C:15]2[CH:25]=[CH:24][CH:23]=[CH:22][C:16]=2C(OCC)=O)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[OH-:26].[Na+].[CH2:28]([OH:30])C>>[C:1]([O:5][C:6]([N:8]1[CH2:9][CH2:10][CH:11]([O:14][C:15]2[CH:16]=[CH:22][C:23]([C:28]([OH:30])=[O:26])=[CH:24][CH:25]=2)[CH2:12][CH2:13]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]Participants
4
Procedure
847 mg (2.43 mmol) of ethyl (1-t-butoxycarbonyl-4-piperidyloxy)benzoate was dissolved in 50 ml of ethanol. 5 ml of 1 N aqueous sodium hydroxide solution was added to the solution, and they were stirred at room temperature for 3 days. The reaction liquid was concentrated and then treated with ethyl acetate as the extractant in an ordinary manner to obtain the title compound.