反应详情

To a solution of 0.20 g of 5'-O-acetyl-3'-O-benzyl-2'-deoxy-5-fluorouridine in 10 ml of dioxane were added 0.29 g of benzoyl chloride and 0.73 ml of triethylamine, and the mixture was left to stand at 80° C. for 2 hours. The solvent was distilled off and the residue was dissolved in 50 ml of ethyl acetate. The solution was washed with water. The ethyl acetate layer was dried over anhydrous sodium sulfate and concentrated. The concentrate was placed on a silica gel column and eluted with chloroform, giving 0.2 g of the title compound as an oil in a yield of 78%.

1. waitthe mixture was left
2. distillationThe solvent was distilled off
3. dissolutionthe residue was dissolved in 50 ml of ethyl acetate
4. washThe solution was washed with water
5. dry with materialThe ethyl acetate layer was dried over anhydrous sodium sulfate
6. concentrationconcentrated
7. washeluted with chloroform