[F:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[N:9]1[C:18]2[C:13](=[CH:14][C:15]([F:21])=[C:16](F)[C:17]=2[F:19])[C:12](=[O:22])[C:11]([C:23]([OH:25])=[O:24])=[CH:10]1.Br.[N+:27]([C:30]1[CH:38]=[CH:37][CH:36]=[C:35]2[C:31]=1[CH2:32][NH:33][CH2:34]2)([O-:29])=[O:28].C1CCN2C(=NCCC2)CC1>CN(C=O)C>[N+:27]([C:30]1[CH:38]=[CH:37][CH:36]=[C:35]2[C:31]=1[CH2:32][N:33]([C:16]1[C:17]([F:19])=[C:18]3[C:13]([C:12](=[O:22])[C:11]([C:23]([OH:25])=[O:24])=[CH:10][N:9]3[C:3]3[CH:4]=[CH:5][C:6]([F:8])=[CH:7][C:2]=3[F:1])=[CH:14][C:15]=1[F:21])[CH2:34]2)([O-:29])=[O:28]213 mg of 1-(2,4-difluorophenyl)-6,7,8-trifluoro-1,4- dihydro-4-oxoquinoline-3-carboxylic acid, 176 mg of 4-nitroisoindoline hydrobromide, 164 mg of DBU, and 1.5 ml of anhydrous DMF were processed in the same manner as in Example 20 to produce 47 mg of the target compound.
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