Cesium carbonate → HCID 90052403, compound

Participants

Reaction Conditions

Reaction Steps

To (S)-tert-butyl (1-((3-((2-chloro-4-morpholinopyrimidin-5-yl)ethynyl)phenyl)amino)-1-oxopropan-2-yl)(methyl)carbamate (L5, 437 mg), 4-(2-aminoethyl)pyridine (214 mg), tris(dibenzylideneacetone)dipalladium(0) (80 mg), 4,5′-bis(diphenylphosphino)-9,9′-dimethylxanthene (101 mg) and cesium carbonate (856 mg), 1,4-dioxane (10 mL) was added at room temperature, and the mixture was stirred at 100° C. for 12 hours. The reaction mixture was cooled to room temperature, then the insoluble matter was removed by filtration through Cerite, and then the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (eluent, 95% ethyl acetate/5% methanol) to obtain (S)-tert-butyl methyl(1-((3-((4-morpholino-2-((2-(pyridin-4-yl)ethyl)amino)pyrimidin-5-yl)ethynyl)phenyl)amino)-1-oxopropan-2-yl)carbamate (L6, 104 mg).

Provenance & Evidence