[NH:1]1[CH2:6][CH2:5][C:4](=[O:7])[CH2:3][CH2:2]1.Cl[CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][O:14][CH2:15][C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1>>[CH2:15]([O:14][CH2:13][CH2:12][CH2:11][CH2:10][CH2:9][N:1]1[CH2:6][CH2:5][C:4](=[O:7])[CH2:3][CH2:2]1)[C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=11-(5-Benzyloxypentyl)-4-piperidone is prepared from 4-piperidone and 1-chloro-5-benzyloxypentane essentially as described above in Example 38, Scheme C, step a.
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