Hydrochloric Acid → (2-(4-{4-[1,1,1,3,3,3-Hexafluoro-2-(methoxymethoxy)propan-2-yl]-2-propylphenyl}piperazin-1-yl)ethyl]-5-[4-(1-methylethoxy)phenyl]-5-methylimidazolidine-2,4-dione

Participants

Reaction Steps

2-(4-{4-[1,1,1,3,3,3-Hexafluoro-2-(methoxymethoxy)propan-2-yl]-2-propylphenyl}piperazin-1-yl)ethanol (7.8 mg, 0.0170 mmol), 5-methyl-5-(4-(1-methylethoxy)phenyl)imidazolidine-2,4-dione (A11)(15.6 mg, 0.0631 mmol) and triphenylphosphine (15.8 mg, 0.0601 mmol) were dried with a vacuum pump, dissolved in N,N-dimethylformamide (284 μL), added DEAD (23 μL, 0.0167 mmol) under ice-cold conditions, and the mixture was stirred at room temperature for 1 hour. Under ice-cold conditions, the reaction solution was added water (1.0 mL) and 2N aqueous solution of hydrochloric acid (1.0 mL), and extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and concentrated in vacuo. The obtained residue was purified by silica-gel column chromatography (hexane/acetone). The title compound (3.1 mg (yield 26%)) was obtained as a yellow oil.

Provenance & Evidence