[N+:1]([C:4]1[CH:5]=[C:6]([CH:8]=[CH:9][CH:10]=1)[NH2:7])([O-:3])=[O:2].[F:11][C:12]([F:23])([F:22])[C:13]1[CH:14]=[C:15]([CH:19]=[CH:20][CH:21]=1)[C:16](Cl)=[O:17]>N1C=CC=CC=1>[N+:1]([C:4]1[CH:5]=[C:6]([NH:7][C:16](=[O:17])[C:15]2[CH:19]=[CH:20][CH:21]=[C:13]([C:12]([F:11])([F:22])[F:23])[CH:14]=2)[CH:8]=[CH:9][CH:10]=1)([O-:3])=[O:2]To a solution of 3-nitroaniline(13.8 g, 99.9 mmol) in pyridine (200 mL) were added 3-(trifluoromethyl)benzoylchloride (21.4 g, 103 mmol) and N,N-dimethylaminopyridine (69.1 mg, 566 μmol), and the mixture was stirred at room temperature for 1.5 hr. The reaction was quenched with methanol (50 mL), and the solvent was evaporated under reduced pressure. The residue was suspended in ethyl acetate (300 mL), washed with water (200 mL×2), diluted hydrochloric acid (200 mL×2), saturated aqueous sodium hydrogen carbonate solution (200 mL) and saturated brine (100 mL), and dried over anhydrous magnesium sulfate. The insoluble material was filtered off, and the filtrate was concentrated under reduced pressure to give the title compound (31.0 g, 100%) as a colorless solid.
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