[Cl:1][C:2]1[CH:3]=[C:4]([NH:8][CH2:9][CH2:10][NH:11][CH2:12][C:13]2[CH:18]=[CH:17][C:16]([O:19][CH3:20])=[C:15]([O:21][CH3:22])[CH:14]=2)[CH:5]=[CH:6][CH:7]=1.Br[CH:24]([CH2:31]Br)[C:25]([NH:27][CH:28]([CH3:30])[CH3:29])=[O:26]>>[Cl:1][C:2]1[CH:3]=[C:4]([N:8]2[CH2:9][CH2:10][N:11]([CH2:12][C:13]3[CH:18]=[CH:17][C:16]([O:19][CH3:20])=[C:15]([O:21][CH3:22])[CH:14]=3)[CH:24]([C:25]([NH:27][CH:28]([CH3:30])[CH3:29])=[O:26])[CH2:31]2)[CH:5]=[CH:6][CH:7]=1In a manner similar to Preparation 23, react N-(3-chlorophenyl)-N'-[(3,4-dimethoxyphenyl)methyl]-1,2-ethanediamine with 2,3-dibromo-N-(1-methylethyl)propanamide to obtain the title compound.
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