2-{1-[(Tert-butoxycarbonyl)amino]cyclopropyl}ethyl methanesulfonate → HCID 12993141、化合物
反応式
CS(O[CH2:6][CH2:7][C:8]1([NH:11][C:12]([O:14][C:15]([CH3:18])([CH3:17])[CH3:16])=[O:13])[CH2:10][CH2:9]1)(=O)=O.[C:19]1(=[O:29])[C:27]2[C:22](=[CH:23][CH:24]=[CH:25][CH:26]=2)[C:21](=[O:28])[NH:20]1.[K]>CN(C)C=O>[O:29]=[C:19]1[C:27]2[C:22](=[CH:23][CH:24]=[CH:25][CH:26]=2)[C:21](=[O:28])[N:20]1[CH2:6][CH2:7][C:8]1([NH:11][C:12](=[O:13])[O:14][C:15]([CH3:18])([CH3:17])[CH3:16])[CH2:10][CH2:9]1参加物
4
反応条件
- 温度
- 150 °C
実験手順
To a solution of 2-{1-[(tert-butoxycarbonyl)amino]-cyclopropyl}ethyl methanesulfonate (9.5 g, 344.3 mmol) in anhydrous N,N-dimethylformamide (20 ml) was added potassium 2,3-dihydro-1H-isoindole-1,3-dione (7.0 g, 37 mmol). After being stirred at 150° C. for 18 hours, the resulting mixture was then filtered and washed with diethyl ether (50 mL). The filtrate was washed with brine (50 mL×3), dried over sodium sulfate and concentrated in vacuo. The residue was heated with stirring in water and the precipitate was collected by filtration and dried in vacuo to afford 6.0 g of the pure product as an orange solid (yield was 53%).