Benzoyl chloride → HCID 68525732, compound

Participants

Reaction Steps

To a solution of 3,4-dichloro-N-(6-{4-[3-oxo-3-(4-piperonylpiperazin-1-yl)propyl]phenylamino}-pyridin-3-yl)benzamide (250 mg, 0.395 mmol) in THF (5 mL) were added triethylamine (0.132 mL, 0.949 mmol) and benzoyl chloride (0.0550 mL, 0.474 mmol), and the resulting solution was stirred for 7 hours at room temperature. Water was added to the resulting reaction solution, and extracted with ethyl acetate. The ethyl acetate layer was washed with brine, dried over anhydrous magnesium sulfate, and evaporated. The residue was purified by silica gel column chromatography (dichloromethane:methanol 10:1) to yield 0.300 g of a free form. To this free form were added isopropanol (5 mL) and oxalic acid dihydrate (100 mg, 0.793 mmol), and the resulting solution was dissolved under heat. The solvent was evaporated, and the resulting solid was recrystallized from isopropanol, to thereby yield 80.0 mg of the title compound.

Provenance & Evidence