反应详情

Ethyl N—{(E)-[(tert-butoxycarbonyl)amino][(tert-butoxycarbonyl)imino]methyl}-N-methylglycinate (630 mg, 1.75 mmol) was dissolved in tetrahydrofuran (6.3 mL) at room temperature. To this was added 1.0 M aqueous sodium hydroxide (0.75 mL, 1.75 mmol). The mixture was stirred at room temperature for 1 hour and then concentrated under vacuum to remove the tetrahydrofuran. The mixture was cooled in an ice bath and acidified with 1 M aqueous sulfuric acid (1.72 mL, 1.75 mmol). The mixture was diluted with methylene chloride, and then the water was removed using anhydrous magnesium sulfate. After filtering, the methylene chloride was removed under vacuum to give the title compound in a quantitative yield.

1. concentrationconcentrated under vacuum
2. customto remove the tetrahydrofuran
3. temperatureThe mixture was cooled in an ice bath
4. customthe water was removed
5. filtrationAfter filtering
6. customthe methylene chloride was removed under vacuum