Methyl iodide → Methyl 6-(benzyloxycarbonyl-methyl-amino)-hexanoate

関与物質

反応手順

Methyl 6-benzyloxycarbonylamino-hexanoate (4.15 g) is dissolved in N,N-dimethylformamide (2.5 mL) and thereto is added sodium hydride (63%) (552 mg) under ice-cooling and the mixture is stirred at the same temperature for 1 hour and thereto is added methyl iodide (1.72 ml), and the mixture is stirred at the same temperature for an additional 2 hours. To the reaction mixture is added a saturated brine, and the mixture is extracted with ethyl acetate, and the organic layer is washed with a saturated brine, dried over magnesium sulfate, and concentrated under reduced pressure. The resulting residue is purified by silica gel column chromatography (hexane:ethyl acetate=4:1) to give methyl 6-(benzyloxycarbonyl-methyl-amino)-hexanoate (2.25 g). MS (m/z): 294 [M+H]+

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