Methyl iodide → 2-(Isobutoxycarbonyl-methyl-amino)-1,2,3,4-tetrahydro-naphthalene-2-carboxylic acid tert-butyl ester

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Reaction Steps

The carbamate from Example 33D (1.5 g, 4.3 mmol) was dissolved in DMF (4.0 mL) followed by addition of MeI (1.1 g, 8.0 mmol) and NaH (50%, 384 mg, 8.0 mmol) at 0° C. The mixture was stirred for 6 hours, diluted with aqueous NH4Cl and extracted with ethyl acetate(3×75 mL). The combined organic layers were dried with MgSO4, filtered, concentrated under reduced pressure to provide the titled compound (1.3 g, 83%).

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