[C:1]([C:4]1[CH:12]=[CH:11][C:7]([C:8]([OH:10])=[O:9])=[C:6]([CH3:13])[CH:5]=1)(=[O:3])[CH3:2].[Cl:14][C:15]1[CH:16]=[C:17]([C:22](=[O:27])[C:23]([F:26])([F:25])[F:24])[CH:18]=[C:19]([Cl:21])[CH:20]=1.C(N(CC)CC)C>C1(C)C=CC=CC=1>[Cl:14][C:15]1[CH:16]=[C:17]([C:22]([OH:27])([C:23]([F:24])([F:25])[F:26])[CH2:2][C:1]([C:4]2[CH:12]=[CH:11][C:7]([C:8]([OH:10])=[O:9])=[C:6]([CH3:13])[CH:5]=2)=[O:3])[CH:18]=[C:19]([Cl:21])[CH:20]=14.46 g of 4-acetyl-2-methylbenzoic acid, 6.08 g of 3′,5′-dichloro-2,2,2-trifluoroacetophenone, 18.2 g of toluene and 3.79 g of triethylamine were fed and the mixture was stirred for 13 hours at 60° C. 12.2 g of toluene was added to the slurry-state reaction solution, and the mixture was cooled to room temperature. The reaction solution was filtered under reduced pressure, and the solid was washed with a small amount of toluene. 11.3 g of triethylamine salt of 4-(3-(3,5-dichlorophenyl)-4,4,4-trifluoro-3-hydroxybutanoyl)-2-methylbenzoic acid as a white solid was obtained by drying under reduced pressure.
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