N-(3-Aminophenyl)-1-phenylmethanesulfonamide → 1-phenyl-N-(3-((5-(4-(trifluoromethyl)phenyl)oxazol-2-yl)amino)phenyl)methane sulfonamide

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A mixture of 2-chloro-5-(4-(trifluoromethyl)phenyl)oxazole 31 (0.651 g, 2.63 mmol) and N-(3-aminophenyl)-1-phenylmethanesulfonamide 26 (0.69 g, 2.63 mmol) in 2-propanol (50 mL) was heated to 80° C. for 18 h with stirring. Upon cooling, solvent was evaporated and silica column purified (Biotage) (Acetone/hexane as an eluent) to provide 1-phenyl-N-(3-((5-(4-(trifluoromethyl)phenyl)oxazol-2-yl)amino)phenyl)methane sulfonamide. 34 (0.407 g, 33% yield) as a solid. MS (ES) m/z 474 (M+H+).

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