Water → 6-[5-amino-3-phenyl-6-(2-pyridylethynyl)-2-pyrazinyl]-2-isopropyl-3(2H)-pyridazinone

Participants

Reaction Steps

In the presence of copper(I) iodide (3.7 mg) and dichlorobis(triphenylphosphine)palladium(II) (13.7 mg), triethylamine (0.0596 ml) was dropwise added to a mixture of 6-(5-amino-6-bromo-3-phenyl-2-pyrazinyl)-2-isopropyl-3(2H)-pyridazinone (150 mg) and 2-ethynylpyridine (0.0431 ml) in 1,2-dichloroethane (1.5 ml) at 30-35° C. The mixture was stirred at the same temperature for 18 hours. Water was added to the reaction mixture to give a solid. The solid was purified by column chromatography on silica gel (EtOAc only) to give a solid. The solid was suspended in acetone to give 6-[5-amino-3-phenyl-6-(2-pyridylethynyl)-2-pyrazinyl]-2-isopropyl-3(2H)-pyridazinone (88 mg).

Provenance & Evidence