Water → (2R)-1-[3,5-bis(trifluoromethyl)benzoyl]-2-[(1H-indol-3-yl)methyl]-4-[3-(3-pyridyl)-2-propynyl]piperazine

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

A mixture of (2R)-1-[3,5-bis(trifluoromethyl)benzoyl]-2-[(1H-indol-3-yl)methyl]piperazine (0.67 g), 1-chloro-3-(3-pyridyl)-2-propyne hydrochloride (0.3 g) and potassium carbonate (0.52 g) in N,N-dimethylformamide (5 ml) was stirred for 5 hours at 50° C. The mixture was poured into water and extracted with ethyl acetate. The extract was washed with brine, dried over magnesium sulfate and evaporated under reduced pressure. The residue was purified by column chromatography on silica gel using ethyl acetate as eluent to give (2R)-1-[3,5-bis(trifluoromethyl)benzoyl]-2-[(1H-indol-3-yl)methyl]-4-[3-(3-pyridyl)-2-propynyl]piperazine (0.25 g) as a syrup.

Herkunft & Nachweise