反应详情

Combine (4R)-5,6-dihydro-4H-imidazo[1,2-a][1]benzazepin-4-amine (0.50 g, 2.51 mmol), 1-[(4-ethoxybenzoyl)amino]cyclopropanecarboxylic acid (0.75 mg, 3.01 mmol), 1-hydroxybenzotriazole (407 mg, 3.01 mmol), and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (577 mg, 3.01 mmol) in tetrahydrofuran (40 mL). Add diisopropylethylamine (0.53 mL, 3.01 mmol) and stir the reaction for approximately 16 hours at ambient temperature under nitrogen. Dilute the reaction with ethyl acetate, wash with saturated sodium bicarbonate and brine, dry over sodium sulfate, and concentrate the organic layer under reduced pressure. Purify the residue by flash chromatography (25% EtOAc/hexanes to 100% EtOAc) to give the title compound (860 mg, 80%): MS (m/z): 431 (M+1).

1. customthe reaction for approximately 16 hours at ambient temperature under nitrogen
2. additionDilute
3. washwash with saturated sodium bicarbonate and brine
4. dry with materialdry over sodium sulfate
5. concentrationconcentrate the organic layer under reduced pressure
6. customPurify the residue by flash chromatography (25% EtOAc/hexanes to 100% EtOAc)