[CH2:1]([N:3]([CH2:35][CH3:36])[CH2:4][CH2:5][O:6][C:7]1[CH:8]=[CH:9][C:10]2[C:19]([C:20]=1[N+:21]([O-])=O)=[N:18][C:17]1[C:12](=[CH:13][CH:14]=[C:15]([O:27][CH2:28][CH2:29][N:30]([CH2:33][CH3:34])[CH2:31][CH3:32])[C:16]=1[N+:24]([O-])=O)[CH:11]=2)[CH3:2].[H][H]>[Pd].C(OC(=O)C)(=O)C>[CH2:1]([N:3]([CH2:35][CH3:36])[CH2:4][CH2:5][O:6][C:7]1[CH:8]=[CH:9][C:10]2[C:19]([C:20]=1[NH:21][C:5](=[O:6])[CH3:4])=[N:18][C:17]1[C:12](=[CH:13][CH:14]=[C:15]([O:27][CH2:28][CH2:29][N:30]([CH2:33][CH3:34])[CH2:31][CH3:32])[C:16]=1[NH:24][C:15](=[O:27])[CH3:14])[CH:11]=2)[CH3:2]3,6-bis(2-diethylaminoethoxy)-4,5-dinitroacridine is reduced with hydrogen and palladium catalyst in acetic anhydride as the solvent in the reduction, giving the desired product.
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