反应详情

Into a 100-mL round-bottom flask, was placed 4-[5-[3-chloro-5-(trifluoromethyl)phenyl]-5-(trifluoromethyl)-4,5-dihydro-1,2-oxazol-3-yl]-2-methylbenzoic acid (452 mg, 1.00 mmol, 1.00 equiv), dichloromethane (50 mL), EDCI (384 mg, 2.00 mmol, 2.00 equiv), HOBt (270 mg, 2.00 mmol, 2.00 equiv), TEA (303 mg, 2.99 mmol, 3.00 equiv), imidazolidin-4-one hydrochloride (135 mg, 1.10 mmol, 1.00 equiv). The resulting solution was stirred overnight at room temperature. The resulting solution was diluted with 100 mL of DCM. The resulting mixture was washed with 3×50 mL of brine. The mixture was dried over anhydrous sodium sulfate. The resulting mixture was concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1:2). This resulted in 200 mg (38%) of 1-[(4-[5-[3-chloro-5-(trifluoromethyl)phenyl]-5-(trifluoromethyl)-4,5-dihydro-1,2-oxazol-3-yl]-2-methylphenyl)carbonyl]imidazolidin-4-one as a light yellow solid.

1. customInto a 100-mL round-bottom flask, was placed
2. washThe resulting mixture was washed with 3×50 mL of brine
3. dry with materialThe mixture was dried over anhydrous sodium sulfate
4. concentrationThe resulting mixture was concentrated under vacuum
5. customThis resulted in 200 mg (38%) of 1-[(4-[5-[3-chloro-5-(trifluoromethyl)phenyl]-5-(trifluoromethyl)-4,5-dihydro-1,2-oxazol-3-yl]-2-methylphenyl)carbonyl]imidazolidin-4-one as a light yellow solid