[C:1]([C:9](=[CH:15][NH:16][C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=1[C:23]([F:26])([F:25])[F:24])[C:10](OCC)=[O:11])(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.CCCCCC>C1C=CC(C2C=CC=CC=2)=CC=1.C1C=CC(OC2C=CC=CC=2)=CC=1>[OH:11][C:10]1[C:22]2[C:17](=[C:18]([C:23]([F:24])([F:26])[F:25])[CH:19]=[CH:20][CH:21]=2)[N:16]=[CH:15][C:9]=1[C:1]([C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1)=[O:8]A solution of ethyl 2-benzoyl-3-[2-(trifluoromethyl)phenylamino]acrylate (30.5 g, 84.0 mmol) in Dowtherm® (280 mL) was stirred at 260° C. for 11 hours. The reaction solution was returned to room temperature, then added with hexane and recrystallized. The title compound (17.0 g, yield 64%) was obtained as a brown oil.
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