Methyl iodide → [4-(Benzyloxy)-3-methylquinolin-2-yl]methyl 4-(3-phenylpropanoyl)piperazine-1-carboxylate

Participants

Reaction Conditions

Reaction Steps

To a solution of 1-(1H-imidazol-1-ylcarbonyl)-4-(3-phenylpropanoyl)piperazine (1.03 g) in acetonitrile (20 mL) was added dropwise methyl iodide (1.40 mL) and triethylamine (2.20 mL) at room temperature, followed by stirring at 60° C. for 5 hours. The reaction mixture was allowed to cool to room temperature, and then [4-(benzyloxy)-3-methylquinolin-2-yl]methanol (300 mg) was added thereto, followed by dropwise addition of triethylamine (0.50 mL) and stirring at 70° C. for 15 hours. The reaction mixture was concentrated under reduced pressure, and water (20 mL) was added to the residue, followed by extraction with ethyl acetate (50 mL). The organic layer was washed with saturated brine and then dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (eluent: hexane/ethyl acetate=90/10) to obtain [4-(benzyloxy)-3-methylquinolin-2-yl]methyl 4-(3-phenylpropanoyl)piperazine-1-carboxylate (405 mg).

Provenance & Evidence