反应详情

To solution of 3-[2-(2,4-dichloro-phenoxy)acetylamino]-benzoic acid (150 mg, 0.44 mmol) and ethanolamine (0.04 ml, 0.66 mmol) in DMF 3.0 mL was added EDC (126.5 mg, 0.66 mmol), HOBt (89.2 mg, 0.66 mmol) and DIPEA (0.11 ml, 0.66 mmol). Reaction mixture was stirred at room temperature, and separated by EtoAC and brine. The organic phase was dried (MgSO4 anh) and concentrated. The residue was purified by silica gel column chromatography (CH2Cl2:MeOH=15:1) to give 3-[2-(2,4-dichloro-phenoxy)-acetylamino]-N-(2-hydroxy-ethyl)-benzamide as a white solid (135 mg, 80% yield).

1. customReaction mixture
2. customseparated by EtoAC and brine
3. dry with materialThe organic phase was dried (MgSO4 anh)
4. concentrationconcentrated
5. customThe residue was purified by silica gel column chromatography (CH2Cl2:MeOH=15:1)