反应详情

1.08 g of ethyl 2-bromo-6-(1-t-butoxycarbonyl4-piperidyl)hexanoate, 0.85 g of t-butyl rel-α-[3(S)amino-2-oxo-6(R)-phenylperhydroazepin-1-yl]acetate, 0.4 g of sodium iodide and 1.4 g of sodium carbonate were added to 15 ml of dimethylformamide, and the mixture was stirred at room temperature for 3 days. Ethyl acetate and water were then added to the reaction mixture, and, after stirring, the ethyl acetate layer was separated, washed with an aquous sodium chloride solution, and dried over anhydrous magnesium sulfate. The solvent was then removed by evaporation under reduced pressure, and the residue was subjected to silica gel column chromatography using a 2:1 by volume mixture of cyclohexane and ethyl acetate as the eluent.

1. stirringafter stirring
2. customthe ethyl acetate layer was separated
3. washwashed with an aquous sodium chloride solution
4. dry with materialdried over anhydrous magnesium sulfate
5. customThe solvent was then removed by evaporation under reduced pressure
6. additionby volume mixture of cyclohexane and ethyl acetate as the eluent