[H-].[Na+].[CH3:3][N:4]([CH3:16])[CH2:5][CH2:6][CH:7]([C:9]1[CH:14]=[CH:13][C:12]([Cl:15])=[CH:11][CH:10]=1)[OH:8].Cl[C:18]1[CH:23]=[CH:22][C:21]([N+:24]([O-:26])=[O:25])=[CH:20][CH:19]=1.O>CN(C)C=O>[CH3:16][N:4]([CH3:3])[CH2:5][CH2:6][CH:7]([O:8][C:18]1[CH:23]=[CH:22][C:21]([N+:24]([O-:26])=[O:25])=[CH:20][CH:19]=1)[C:9]1[CH:10]=[CH:11][C:12]([Cl:15])=[CH:13][CH:14]=12.85 g of sodium hydride in a 50% oil suspension were added at 20° C. to a solution of 6.32 g of α-[2-dimethylamino-ethyl]-4-chlorobenzene methanol in 60 ml of dimethylformamide and 5.1 g of p-chloronitrobenzene were added thereto under nitrogen. The mixture was stirred for 45 minutes and 100 ml of water were added thereto at 25° C. The mixture was extracted with methylene chloride and the organic phase was washed with water, dried and evaporated to dryness to obtain 11.5 g of N,N-dimethyl-γ-(4-nitrophenoxy)-4-chlorobenzene-propanamine in the form of an orange oil.
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