[N+:1]([C:4]1[CH:12]=[CH:11][C:7]([C:8]([NH2:10])=[O:9])=[CH:6][C:5]=1[C:13]([NH:15][C:16]1[CH:21]=[CH:20][C:19]([Cl:22])=[CH:18][CH:17]=1)=[O:14])([O-])=O.[H][H]>CO.[Pt]=O>[NH2:1][C:4]1[CH:12]=[CH:11][C:7]([C:8]([NH2:10])=[O:9])=[CH:6][C:5]=1[C:13]([NH:15][C:16]1[CH:21]=[CH:20][C:19]([Cl:22])=[CH:18][CH:17]=1)=[O:14]4-Nitro-3-N-(4-chlorophenyl)-isophthalamide (46 mg) obtained in Example 1-2-20 was dissolved in 7 mL of methanol, and 10 mg of platinum oxide was added to the solution, followed by stirring the mixture for 30 minutes at room temperature in an atmosphere of hydrogen. The reaction mixture was filtered to remove insolubles, and the filtrate was concentrated under reduced pressure. The resulting solid was dried under reduced pressure to obtain 41 mg (99%) of 4-amino-3-N-(4-chlorophenyl)-isophthalamide.
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