Water → Methyl 5-(benzyl(4-cyanophenyl)amino)-3-methyl-5-oxopentanoate

Participants

Reaction Steps

To a solution of the compound obtained in Step 1 (228 mg, 0.88 mmol) in DMF (6 mL) was added sodium hydride (60% in oil, 126 mg, 2.63 mmol) at 0° C. The reaction mixture was stirred at room temperature for 30 min, and benzyl bromide (0.156 mL, 1.31 mmol) was added thereto at 0° C. The reaction mixture was stirred at room temperature for 14 hr, to the reaction solution was added water, and the mixture was extracted with ethyl acetate. The organic layer was washed with water and saturated brine, and dried, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (solvent gradient; 5 to 85% ethyl acetate/hexane) to give methyl 5-(benzyl(4-cyanophenyl)amino)-3-methyl-5-oxopentanoate (81 mg, 0.230 mmol, 26.3%) as a colorless oil.

Provenance & Evidence