反应详情

Boc-Pro-OH (50.0 g, 0.23 mol) was dissolved in dichloromethane (500 mL), and EDCI (89.1 g, 0.46 mol), DMAP (5.7 g, 0.05 mol), DIPEA (162 mL, 0.93 mol) and benzyl alcohol (48 mL, 0.46 mol) were added dropwise. The mixture was stirred at room temperature for 12 hours. The mixture was washed several times with an aqueous solution of 5% citric acid. The organic layer was dried over sodium sulfate, and filtered and distilled under reduced pressure to obtain the title compound as yellow oil (70.0 g, 99%).

1. washThe mixture was washed several times with an aqueous solution of 5% citric acid
2. dry with materialThe organic layer was dried over sodium sulfate
3. filtrationfiltered
4. distillationdistilled under reduced pressure