反应详情

To a solution of 7-((2-((tert-butoxycarbonyl)amino)phenyl)amino)-7-oxoheptanoic acid (1.0 g, 2.85 mmol) in DMF (20 mL) was added 4-aminophenol (0.31 g, 2.85 mmol), HBTU (1.1 g, 2.85 mmol), DIEA (2 mL, 11.4 mmol). The mixture was stirred at room temperature for 12 hours. The resulting mixture was poured into water and extracted by EtOAc (100 mL×3). The organic layers were combined and washed with saturated aqueous solution of Na2CO3, dried over Na2SO4 and then the resulting residue was used directly for the next step without further purification.

1. extractionextracted by EtOAc (100 mL×3)
2. washwashed with saturated aqueous solution of Na2CO3
3. dry with materialdried over Na2SO4
4. customthe resulting residue was used directly for the next step without further purification