反应详情

64.0 mg (0.296 mmol) of 3-hydroxy-2-[(1-piperidinylcarbonyl)amino]propionic acid, 80.9 mg (0.296 mmol) of 4-(5H-dibenzo[a,d][7]annulen-5-ylidene)piperidine and 85.1 mg (0.444 mmol) of 1-ethyl-3-(3′-dimethylaminopropyl)carbodiimide hydrochloride were dissolved in 10 ml of dichloromethane. 0.091 ml (0.651 mmol) of triethylamine was added to the obtained solution, and they were stirred at room temperature overnight. The reaction mixture was concentrated under reduced pressure. Ethyl acetate was added to the residue. After washing with saturated aqueous sodium chloride solution, the reaction product was dried over anhydrous magnesium sulfate and then concentrated under reduced pressure. The resultant product was purified by the silica gel chromatography (dichloromethane:methanol=9:1) to obtain the title compound.

1. concentrationThe reaction mixture was concentrated under reduced pressure
2. additionEthyl acetate was added to the residue
3. washAfter washing with saturated aqueous sodium chloride solution
4. dry with materialthe reaction product was dried over anhydrous magnesium sulfate
5. concentrationconcentrated under reduced pressure
6. customThe resultant product was purified by the silica gel chromatography (dichloromethane:methanol=9:1)