反应详情

At room temperature, 22.67 ml (294.3 mmol) of trifluoroacetic acid were added slowly to a solution of 6.6 g (14.7 mmol) of tert-butyl cyclopentyl{4-[(5-oxo-2-phenyl-5,6-dihydro-4H-1,3,4-oxadiazin-4-yl)methyl]phenyl}acetate in 90 ml of dichloromethane, and the mixture was stirred overnight. The solvent was then removed under reduced pressure and the residue was taken up in 100 ml of ethyl acetate and extracted with 50 ml of water. The organic phase was dried over magnesium sulfate. After filtration, the solvent was removed under reduced pressure. This gave 4.8 g (12.23 mmol, 83% of theory) of a colorless solid.

1. customThe solvent was then removed under reduced pressure
2. extractionextracted with 50 ml of water
3. dry with materialThe organic phase was dried over magnesium sulfate
4. filtrationAfter filtration
5. customthe solvent was removed under reduced pressure