[ClH:1].C([N:9]1[CH2:14][CH2:13][CH:12]([CH2:15][OH:16])[CH2:11][CH2:10]1)C1C=CC=CC=1.C>C(O)C>[ClH:1].[NH:9]1[CH2:14][CH2:13][CH:12]([CH2:15][OH:16])[CH2:11][CH2:10]1105 g of 1-benzyl-4-piperidinemethanol hydrochloride, 2 l of ethanol and 12.5 g of palladinized charcoal are introduced into a Parr bottle, and a hydrogenolysis is performed at 50° C. under a pressure of 0.4 MPa. The mixture is filtered and the filtrate evaporated off under reduced pressure. 58.7 g of solid are obtained. Melting point: 128°-130° C.
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