[C:1]([NH:9][C:10]1[CH:22]=[C:21]([C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=2[CH3:29])[CH:20]=[CH:19][C:11]=1[C:12]([O:14]C(C)(C)C)=[O:13])(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1>FC(F)(F)C(O)=O>[C:1]([NH:9][C:10]1[CH:22]=[C:21]([C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=2[CH3:29])[CH:20]=[CH:19][C:11]=1[C:12]([OH:14])=[O:13])(=[O:8])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=110 mL of trifluoroacetic acid was added no the obtained tert-butyl 2-(benzamido)-4-(2-methylphenyl)benzoate and stirred at room temperature for 1 hour. The solvent was evaporated under reduced pressure and methanol was added to the obtained residue and a solid substance was separated by filtration to obtain 14 mg of 2-(benzamido)-4-(2-methylphenyl)benzoic acid as white solid.
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