反应详情

To a solution of 1,1-dimethylethyl 3-(aminomethyl)-1-azetidinecarboxylate (5.0 g, 26.84 mmole) in DMF (40 mL) was added triethylamine (4.9 mL, 34.9 mmole) and Cbz-succinamide (8.7 g, 34.9 mmole). After 18 hours, the reaction solution was concentrated under vacuum and redissolved in EtOAc (250 mL). The organic solution was washed with H2O (2×150 mL), brine (100 mL) and dried over Na2SO4 and concentrated. The remaining residue was purified on silica (hexanes/EtOAc, 1:1) to give the title compound (5.5 g, 64%) as a light yellow oil: LC-MS (ES) m/e 321 (M+H)+.

1. concentrationthe reaction solution was concentrated under vacuum
2. dissolutionredissolved in EtOAc (250 mL)
3. washThe organic solution was washed with H2O (2×150 mL), brine (100 mL)
4. dry with materialdried over Na2SO4
5. concentrationconcentrated
6. customThe remaining residue was purified on silica (hexanes/EtOAc, 1:1)