[N:1]1([CH2:6][CH2:7][CH2:8][NH:9][C:10]([C:12]2[S:13][CH:14]=[CH:15][CH:16]=2)=[O:11])[CH:5]=[CH:4][N:3]=[CH:2]1.[H-].[Na+].[CH2:19](Br)[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1>CN(C)C=O>[CH2:19]([N:9]([CH2:8][CH2:7][CH2:6][N:1]1[CH:5]=[CH:4][N:3]=[CH:2]1)[C:10]([C:12]1[S:13][CH:14]=[CH:15][CH:16]=1)=[O:11])[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1A mixture of 4.7 g. of N-[3-(1H-imidazol-1-yl)propyl]-2-thiophene carboxamide, 40 ml. of dimethylformamide, and 0.96 g. of 50% sodium hydride in oil was stirred for 2 hours and 2.62 g. of benzyl bromide was added. The mixture was stirred for 24 hours, concentrated to remove the dimethyl formamide, diluted with water and methylene chloride, and the layers separated. The organic layer was washed with water, dried over magnesium sulfate, and concentrated. The oil was twice washed with hexane and again concentrated. The desired product was obtained as an oil.
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