反应详情

N-FMOC-O-t-Butyl-L-tyrosine (5 g, 10.88 mmol) (Bachem) was dissolved in dichloromethane (50 mL). Pyridine (0.88 mL, 10.88 mmol) (Aldrich) and cyanuric fluoride (1.47 g, 10.88 mmol) (Aldrich) were successively added at room temperature and the mixture was stirred for 5 hours. Ice cold water (100 mL) was added and the resulting slurry was filtered. The filtrate was poured into a separatory funnel and the layers were separated. The organic layer was dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure to afford N-FMOC-O-t-butyl-L-tyrosyl fluoride as a white powder. (Yield 4.43 g, 88%).

1. filtrationthe resulting slurry was filtered
2. additionThe filtrate was poured into a separatory funnel
3. customthe layers were separated
4. dry with materialThe organic layer was dried over anhydrous sodium sulfate
5. filtrationfiltered
6. concentrationconcentrated under reduced pressure