Cesium carbonate → HCID 117843598, compound

Participants

Reaction Conditions

Reaction Steps

To an appropriate sized microwave vial, 6-bromo-4-((R)-1-((R)-1-((R)-1-(4-methoxyphenyl)ethyl)-5-oxopyrrolidin-3-yl)ethoxy)pyrazolo[1,5-a]pyridine-3-carbonitrile (91.0 mg, 0.188 mmol), (4-(4-(tert-butoxycarbonyl)piperazin-1-yl)phenyl)boronic acid (86.5 mg, 0.282 mmol), cesium carbonate (184 mg, 0.565 mmol), dioxane (2.0 mL) and water (0.5 mL) were added. The mixture was degassed with nitrogen for 10 minutes. Tetrakis(triphenylphosphine)palladium(0) catalyst (21.8 mg, 0.0188 mmol) was added and the solution was heated at 100° C. for 45 minutes. After cooling to room temperature, the reaction was concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (100% EtOAc) to afford tert-butyl 4-(4-(3-cyano-4-((R)-1-((R)-1-((R)-1-(4-methoxyphenyl)ethyl)-5-oxopyrrolidin-3-yl)ethoxy)pyrazolo[1,5-a]pyridin-6-yl)phenyl)piperazine-1-carboxylate.

Provenance & Evidence