Sodium Azide → tert-butyl-{(4S)-5-azido-4-[(tert-butoxycarbonyl)amino]pentyl}carbamate
反応式
[N-:1]=[N+:2]=[N-:3].[Na+].CS(O[CH2:10][C@@H:11]([NH:23][C:24]([O:26][C:27]([CH3:30])([CH3:29])[CH3:28])=[O:25])[CH2:12][CH2:13][CH2:14][NH:15][C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])(=O)=O>CN(C)C=O>[N:1]([CH2:10][C@@H:11]([NH:23][C:24]([O:26][C:27]([CH3:28])([CH3:30])[CH3:29])=[O:25])[CH2:12][CH2:13][CH2:14][NH:15][C:16](=[O:17])[O:18][C:19]([CH3:20])([CH3:21])[CH3:22])=[N+:2]=[N-:3]参加物
4
反応条件
- 温度
- 70 °C
実験手順
36 mg (0.55 mmol) of sodium azide are added to a solution of 218 mg (0.55 mmol) of (2S)-2,5-bis[(tert-butoxycarbonyl)amino]pentyl methanesulfonate (Example Z7) in 15 ml of dimethylformamide and the mixture is stirred at 70° C. for 12 h. Most of the solvent is distilled off in vacuo, and the residue is diluted with ethyl acetate. The solution is washed several times with a saturated sodium bicarbonate solution, dried over magnesium sulfate and evaporated to dryness in vacuo. The product is reacted without further purification.