Potassium Carbonate → (+/-)-6-{4-[1-(2-Cyclohexyl-ethyl)-piperidin-3-yl]-phenoxy}-nicotinamide

HRID 130752

Reaction equation

HRID 130752 reaction equation
Cl.[NH:2]1[CH2:7][CH2:6][CH2:5][CH:4]([C:8]2[CH:23]=[CH:22][C:11]([O:12][C:13]3[CH:21]=[CH:20][C:16]([C:17]([NH2:19])=[O:18])=[CH:15][N:14]=3)=[CH:10][CH:9]=2)[CH2:3]1.Br[CH2:25][CH2:26][CH:27]1[CH2:32][CH2:31][CH2:30][CH2:29][CH2:28]1.C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O>[CH:27]1([CH2:26][CH2:25][N:2]2[CH2:7][CH2:6][CH2:5][CH:4]([C:8]3[CH:9]=[CH:10][C:11]([O:12][C:13]4[CH:21]=[CH:20][C:16]([C:17]([NH2:19])=[O:18])=[CH:15][N:14]=4)=[CH:22][CH:23]=3)[CH2:3]2)[CH2:32][CH2:31][CH2:30][CH2:29][CH2:28]1

Participants

5

Procedure

Combine 6-(4-Piperidin-3-yl-phenoxy)-nicotinamide (free base compound of example 322) (0.0255 g, 0.0858 mmol), 1-bromo-2-cyclohexylethane (0.0150 mL, 0.0958 mmol), and potassium carbonate (0.0245 g, 0.177 mmol) in dimethylformamide (1.0 mL) and stir for 10 min. Purify the reaction mixture by ion exchange chromatography (SCX resin, methanol→2 M ammonia/methanol) and silica gel chromatography (15:1→10:1 ethyl acetate:methanol) to provide 0.0146 g (42%) of the title compound as an off-white foam: high resolution mass spectrum (electrospray): m/z calc for C25H34N3O2 408.2651, found 408.2661; 1H NMR (methanol-d4): 8.61 (s br, 1H), 8.28 (d, 1H, J=7.8 Hz), 7.36 (d, 2H, J=7.8 Hz), 7.12 (d, 2H, J=7.8 Hz), 7.01 (d, 1H, J=8.3 Hz), 3.07 (d, 2H, J=10.2 Hz), 2.89 (t, 1H, J=11.2 Hz), 2.55-2.42 (m, 2H), 2.15-1.93 (m, 4H), 1.93-1.64 (m, 8H), 1.63-1.43 (m, 4H), 1.40-1.15 (m, 8H), 1.07-0.86 (m, 3H).

Workup

  1. customPurify the reaction mixture by ion exchange chromatography (SCX resin, methanol→2 M ammonia/methanol) and silica gel chromatography (15:1→10:1 ethyl acetate:methanol)

Sources & evidence

ORD record
ord-05122151cc8344cea185e9d4362cf938
Source dataset
uspto-grants-2008_06
Patent number
US07381719B2

Linked notes

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