Cesium carbonate → HCID 86704416, compound

Participants

Reaction Conditions

Reaction Steps

A sealable vessel was charged with ethyl 7-bromoimidazo[1,2-a]pyridine-3-carboxylate (67 mg, 0.25 mmol), 4-((8-azabicyclo[3.2.1]octan-3-yloxy)methyl)-5-cyclopropyl-3-(2-(trifluoromethoxy)phenyl)isoxazole (I-1H) cesium carbonate (122 mg, 0.38 mmol), 1,4-dioxane (2 mL). The mixture was degassed (argon bubble, 10 min) and then tris(dibenzylideneacetone)dipalladium(0) (11 mg, 0.012 mmol), 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (14 mg, 0.025 mmol) were added. The reaction flask was evacuated and backfilled with Ar three successive times, and then heated to 120° C. for 12 hours. The reaction mixture was cooled to RT, diluted with ethyl acetate (8 mL) and filtered through a CELITE® pad, the filtrate was washed with water (7 mL), dried over magnesium sulfate, concentrated, and chromatographed on silica using linear gradient, 0-100%, EtOAc in Hexanes) to give the desired product as a waxy solid.

Provenance & Evidence