I[CH2:2][CH2:3][CH2:4][CH2:5][C:6]1[CH:11]=[CH:10][C:9]([O:12][CH2:13][C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)=[CH:8][CH:7]=1.[OH:20][CH2:21][CH2:22][C:23]1[NH:24][CH:25]=[CH:26][N:27]=1.C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C>[CH2:13]([O:12][C:9]1[CH:10]=[CH:11][C:6]([CH2:5][CH2:4][CH2:3][CH2:2][N:24]2[CH:25]=[CH:26][N:27]=[C:23]2[CH2:22][CH2:21][OH:20])=[CH:7][CH:8]=1)[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1Benzyl 4-(4-iodobutyl)phenyl ether (14.29 g), 2-(2-hydroxyethyl)imidazole (13.1 g) and potassium carbonate (5.39 g) were stirred in DMF (390 ml) at 60° C. for 16 hours. After cooling, the insoluble matter was filtered off; the filtrate was concentrated under reduced pressure. The residue was dissolved in ethyl acetate and washed with water and saturated brine. Under reduced pressure, the solvent was distilled off; the residue was purified by column chromatography (eluent:ethyl acetate:methanol=19:1 to 9:1). The eluate was recrystallized from ethyl acetate-methanol to give the titled compound (10.99 g) as colorless crystals.
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