Ethyl 3-[4-[(4-chlorophenyl)-2-pyridylmethoxy]-1-piperidyl]-propionate → 3-[4-[(4-Chlorophenyl)-2-pyridylmethoxy]-1-piperidyl]propionic acid
反応式
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]([C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][N:24]=2)[O:9][CH:10]2[CH2:15][CH2:14][N:13]([CH2:16][CH2:17][C:18]([O:20]CC)=[O:19])[CH2:12][CH2:11]2)=[CH:4][CH:3]=1>[OH-].[Na+].C(O)C>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([CH:8]([C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][N:24]=2)[O:9][CH:10]2[CH2:15][CH2:14][N:13]([CH2:16][CH2:17][C:18]([OH:20])=[O:19])[CH2:12][CH2:11]2)=[CH:6][CH:7]=1参加物
4
実験手順
1.00 g (2.48 mmol) of ethyl 3-[4-[(4-chlorophenyl)-2-pyridylmethoxy]-1-piperidyl]propionate obtained in Example 24 was dissolved in a mixed solution of 1 ml of 50 wt % of aqueous sodium hydroxide and 8 ml of ethanol, and the solution was stirred at room temperature for 2 hours. The reaction mixture was concentrated under reduced pressure, neutralized with dil. hydrochloric acid and then extracted with chloroform. The chloroform extract was dried over anhydrous sodium sulfate and then concentrated to give 0.86 g (92%) of 3-[4-[(4-chlorophenyl)-2-pyridylmethoxy]-1-piperidyl]propionic acid.