HCID 11186195, compound → HCID 12097174, compound

Participants

Reaction Conditions

Reaction Steps

Copper iodide (5 mmol) was suspended in THF (25 ml) under an inert gas atmosphere. The suspension was cooled to −70° C. and n-hexyllithium (5 ml,2M in hexanes) was added by syringe. The mixture was stirred for 45 minutes and 5,7-dichloro-6-(2,4,6-trifluoro-phenyl)-pyrazolo[1,5-α]pyrimidine (5 mmol, obtained from Example 3) was added as a solution in THF (10 min). The reaction mixture was stirred for 15 minutes at −70° C. The reaction mixture was then quenched with a mixture of aqueous saturated ammonium chloride/concentrated ammonia (9:1). The two phase mixture was separated. An oil was isolated from the organic layer which was subjected to chromatographic purification which yields the product as a crystalline residue.

Provenance & Evidence