Sodium Chloride → HCID 86751312, compound

Participants

Reaction Steps

A mixture of (2R)-1-[3,5-bis(trifluoromethyl)-benzoyl]-4-(2-chloroacetyl)-2-(1H-indol-3-yl-methyl)piperazine (730 mg), potassium phthalimide (260 mg) in dimethylformamide (10 ml) was stirred at room temperature for 7 hours and then poured into aqueous sodium chloride solution (100 ml). The resulting precipitate was collected by filtration, washed with water and dried. The crude product was dissolved in toluene (7 ml) and filtered. To the filtrate was added n-hexane (35 ml) and the whole was stirred for 10 minutes. The resulting powder was collected by filtration, washed with ethyl ether and dried to give (2R)-1-[3,5-bis(trifluoromethyl)benzoyl]-2-(1H-indol-3-yl-methyl)-4-(phthalimidomethylcarbonyl) piperazine (500 mg).

Provenance & Evidence