Acetic Acid → 4-(4-Fluoro-benzyl)-piperidin-4-ol acetate

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C([N:8]1[CH2:13][CH2:12][C:11]([CH2:15][C:16]2[CH:21]=[CH:20][C:19]([F:22])=[CH:18][CH:17]=2)([OH:14])[CH2:10][CH2:9]1)C1C=CC=CC=1.[C:23](O)(=[O:25])[CH3:24]>C(O)C.[Pd]>[C:23]([O:14][C:11]1([CH2:15][C:16]2[CH:17]=[CH:18][C:19]([F:22])=[CH:20][CH:21]=2)[CH2:10][CH2:9][NH:8][CH2:13][CH2:12]1)(=[O:25])[CH3:24]

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실험 절차

A solution of 1-benzyl-4-(4-fluoro-benzyl)-piperidin-4-ol (5.87 g, 19.6 mmol) in ethanol (80 ml) is treated with acetic acid (1 ml) and with 10% Pd on carbon (1 g). The mixture is stirred at RT under an atmosphere of hydrogen for 20 hours. The mixtre is filtered and the filtrate evaporated. The crude product is treated with dichloromethane. The resultant suspension is filtered and the white solid obtained is washed with cold dichloromethane to afford 4-(4-fluoro-benzyl)-piperidin-4-ol acetate [MH]+ 210.1