[CH2:1]([N:3]([CH2:29][CH3:30])[CH2:4][CH2:5][CH2:6][N:7]([CH3:28])[C:8]([NH:10][C:11]1[CH:16]=[C:15]([O:17][C:18]2[CH:23]=[CH:22][C:21]([N+:24]([O-])=O)=[CH:20][C:19]=2[F:27])[CH:14]=[CH:13][N:12]=1)=[O:9])[CH3:2].O1CCCC1>CO.[C].[Pd]>[CH2:29]([N:3]([CH2:1][CH3:2])[CH2:4][CH2:5][CH2:6][N:7]([CH3:28])[C:8]([NH:10][C:11]1[CH:16]=[C:15]([O:17][C:18]2[CH:23]=[CH:22][C:21]([NH2:24])=[CH:20][C:19]=2[F:27])[CH:14]=[CH:13][N:12]=1)=[O:9])[CH3:30]To a solution of 1-(3-diethylaminopropyl)-3-[4-(2-fluoro-4-nitrophenoxy)pyridin-2-yl]-1-methylurea (503 mg, 1.20 mmol) in methanol (40 ml)-tetrahydrofuran (20 ml) was added 10% palladium carbon (200 mg), followed by stirring under a hydrogen atmosphere at room temperature for 12 hrs. The catalyst was filtered and washed with methanol. The filtrate was concentrated under a reduced pressure to give a residue, which was then purified by silica gel column chromatography (Fuji Silysia NH, ethyl acetate, then ethyl acetate:methanol=10:1) to provide the titled compound (467 mg, 85.6%) as a yellow oil.
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