Benzyl({1-[(4-hydroxytetrahydro-2H-pyran-4-yl)methyl]piperidin-4-yl}methyl)carbamate → 2H-Pyran-4-ol, 4-[[4-(aminomethyl)-1-piperidinyl]methyl]tetrahydro-

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A mixture of benzyl ({1-[(4-hydroxytetrahydro-2H-pyran-4-yl)methyl]piperidin-4-yl}methyl)carbamate as prepared in 1(1) (5.60 g, 15.5 mmol) and palladium on activated carbon (10 wt. %, 1.20 g) in methanol (250 mL) was hydrogenated at room temperature for 20 h. Then, the mixture was filtered through a pad of Celite, and the filtrate was concentrated in vacuo to give 3.30 g (94%) of the title compound as slightly yellow oil.

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