[F:1][C:2]1[C:3](F)=[C:4]2[O:9][CH2:8][CH:7]([CH3:10])[N:6]3[CH:11]=[C:12]([C:17]([OH:19])=[O:18])[C:13](=[O:16])[C:14]([CH:15]=1)=[C:5]23.[CH2:21]([NH:23][C:24]1[CH:25]=[C:26]2[C:30](=[CH:31][CH:32]=1)[CH2:29][NH:28][CH2:27]2)[CH3:22].C1CCN2C(=NCCC2)CC1>CN(C=O)C>[CH2:21]([NH:23][C:24]1[CH:25]=[C:26]2[C:30](=[CH:31][CH:32]=1)[CH2:29][N:28]([C:3]1[C:2]([F:1])=[CH:15][C:14]3[C:13](=[O:16])[C:12]([C:17]([OH:19])=[O:18])=[CH:11][N:6]4[CH:7]([CH3:10])[CH2:8][O:9][C:4]=1[C:5]=34)[CH2:27]2)[CH3:22]141 mg of 9,10-difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido [1,2,3-de][1,4]-benzoxazine-6-carboxylic acid, 97 mg of 5-ethylaminoisoindoline, 152 mg of DBU, and 1.5 ml of anhydrous DMF were processed in the same manner as in Example 1 to produce 109 mg of the target compound.
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