Hydrochloric Acid → HCID 69332575, compound

Participants

Reaction Conditions

Reaction Steps

To a suspension of NaH (60% in oil suspension) (31.1 mg) in DMA (0.6 ml) was added 4-fluorophenol (87.3 mg) and the mixture was stirred at 25-30° C. for 30 minutes. 6-[5-Amino-6-(methylsulfonyl)-3-phenyl-2-pyrazinyl]-2-isopropyl-3(2H)-pyridazinone (150 mg) was added and the mixture was heated at 100-105° C. for 15 hours. After addition of 0.1N HCl (3 ml), an aqueous layer was removed by decantation to give a residue. The residue was purified by column chromatography on silica gel eluting with a mixture of n-hexane and EtOAc (60:40 v/v) to give a solid. The solid was crystallized from a mixture of acetone and n-hexane to give 6-[5-amino-6-(4-fluorophenoxy)-3-phenyl-2-pyrazinyl]-2-isopropyl-3(2H)-pyridazinone (70 mg)

Provenance & Evidence