[CH3:1][N:2]1[CH2:7][CH2:6][CH:5]([C:8]([C:10]2[C:15]([CH2:16][CH2:17][C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=3)=[CH:14][CH:13]=[CH:12][N:11]=2)=[O:9])[CH2:4][CH2:3]1.[BH4-].[Na+]>CO.O>[CH3:1][N:2]1[CH2:3][CH2:4][CH:5]([CH:8]([C:10]2[C:15]([CH2:16][CH2:17][C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=3)=[CH:14][CH:13]=[CH:12][N:11]=2)[OH:9])[CH2:6][CH2:7]1To a mixture of 5.0g (16.2 mmole) of (1-methyl-4-piperidinyl)[3-(2-phenylethyl)-2-pyridinyl]methanone (which can be prepared in the same manner as described in Preparative Example 1, Steps A-D) in 70 mL of methanol was added portionwise 0.8 g (21.1 mmole) of sodium borohydride. The next day the solution was concentrated in vacuo to give a slurry which was dissolved in water and extracted with CHCl3. The combined organic portions were dried over MgSO4, filtered, and concentrated in vacuo to provide a liquid which was distilled (bp 190°-195° C. 1 mm Hg) to give 4.4 gms of the title compound as a viscous oil.
Wird geladen…
