Methyl iodide → Methyl 2-((tert-butoxycarbonyl)amino)-3-cyclohexylpropanoate

참여 물질

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To a solution of 2-tert-butoxycarbonylamino-3-cyclohexyl-propionic acid (3.0 g, 11.1 mmol) and potassium carbonate (1.5 g, 11.1 mmol) in N,N-dimethylformamide (20 mL) was added methyl iodide (0.795 μL; 12.1 mmol). The reaction mixture was stirred at room temperature overnight. To the reaction mixture was added ethyl acetate (100 mL) and the solution was washed with water (3×100 mL). The organic layer was dried over anhydrous sodium sulfate, filtered, and concentrated to give the title intermediate as an oil (3.1 g) which was used directly in the next step.

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