Cl.C(N=C=NCCCN(C)C)C.ON1C2N=CC=CC=2N=N1.[Br:23][C:24]1[CH:30]=[CH:29][CH:28]=[CH:27][C:25]=1[NH2:26].[CH2:31]([N:33]([CH2:41][CH2:42][CH2:43][C:44](O)=[O:45])[C:34]1[CH:39]=[CH:38][CH:37]=[C:36]([CH3:40])[CH:35]=1)[CH3:32]>C(OCC)(=O)C.C(N(CC)CC)C.ClCCl>[Br:23][C:24]1[CH:30]=[CH:29][CH:28]=[CH:27][C:25]=1[NH:26][C:44](=[O:45])[CH2:43][CH2:42][CH2:41][N:33]([CH2:31][CH3:32])[C:34]1[CH:39]=[CH:38][CH:37]=[C:36]([CH3:40])[CH:35]=11-Ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (150 mg), 1-hydroxy-7-azabenzotriazole (106 mg), dichloromethane (2 ml), 2-bromoaniline (134 μl), and triethylamine (162 μl) were added to the compound (100 mg) obtained in Step 2, and the mixture was stirred at room temperature for 17 hours. The reaction mixture was diluted with ethyl acetate, washed with water, and dried over magnesium sulfate. The solvent was evaporated and the residue was purified by silica gel chromatography (hexane-ethyl acetate) to give the title compound (56 mg).
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