[CH3:1][O:2][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][C:12]=1[O:13][CH3:14])[N:9]=[CH:8][CH:7]=[C:6]2[O:15][C:16]1[C:23]([F:24])=[CH:22][CH:21]=[CH:20][C:17]=1[CH:18]=[O:19].[CH2:25]([Mg]Br)[CH3:26].O>O1CCCC1>[CH3:1][O:2][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][C:12]=1[O:13][CH3:14])[N:9]=[CH:8][CH:7]=[C:6]2[O:15][C:16]1[C:23]([F:24])=[CH:22][CH:21]=[CH:20][C:17]=1[CH:18]([OH:19])[CH2:25][CH3:26]2-[(6,7-Dimethoxy-4-quinolyl)oxy]-3-fluorobenzaldehyde was dissolved in anhydrous tetrahydrofuran (1 ml). A 1 M tetrahydrofuran solution of ethylmagnesium bromide (0.5 ml) was added thereto at 0° C., and the mixture was stirred at 0° C. for one hr. Water (1 ml) was added dropwise to the reaction solution to stop the reaction, followed by extraction with ethyl acetate. The ethyl acetate layer was then washed with water and saturated brine and was dried over anhydrous sodium sulfate. The solvent was removed by distillation under the reduced pressure to give 1-{2-[(6,7-dimethoxy-4-quinolyl)oxy]-3-fluorophenyl}-1-propanol.
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