[CH3:1][N:2]([CH3:10])[C:3](=[O:9])[C@H:4]1[CH2:8][CH2:7][CH2:6][NH:5]1.[S:11](N)([NH2:14])(=[O:13])=[O:12]>O1CCOCC1>[NH2:14][S:11]([N:5]1[CH2:6][CH2:7][CH2:8][C@@H:4]1[C:3]([N:2]([CH3:10])[CH3:1])=[O:9])(=[O:13])=[O:12]To a solution of the subtitle compound of step ii) (2.20 g) in dioxane (25 ml) was added sulfamide (7.20 g) and the mixture heated at reflux for 45 h. The reaction mixture was cooled and adsorbed on to silica gel and then purified by column chromatography (5% methanol/EtOAc) to afford the subtitle compound as an oil. Yield: 1.6 g.
Wird geladen…