[CH3:1][N:2]([CH3:21])[CH2:3][CH2:4][CH2:5][NH:6][C:7]1[CH:17]=[CH:16][C:10]([C:11]([N:13]([CH3:15])[CH3:14])=[O:12])=[CH:9][C:8]=1[N+:18]([O-])=O>C(O)C.[C].[Pd]>[NH2:18][C:8]1[CH:9]=[C:10]([CH:16]=[CH:17][C:7]=1[NH:6][CH2:5][CH2:4][CH2:3][N:2]([CH3:1])[CH3:21])[C:11]([N:13]([CH3:15])[CH3:14])=[O:12]10% of palladium-carbon (0.56 g) was added to a solution containing 4-{[3-(dimethylamino)propyl]amino}-N,N-dimethyl-3-nitrobenzamide (2.82 g) in ethanol (20 ml) and the mixture was stirred for 13 hours under a hydrogen gas atmosphere at room temperature. After the catalyst was removed out by filtration, the filtrate was concentrated, thereby yielding the entitled compound (2.59 g) as dark red solid.
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