反应详情

温度

100 °C

To a solution of tris(dibenzylideneacetone)dipalladium(0) (1.0 mg) in 1,4-dioxane (0.86 mL), 2-(dicyclohexylphosphino)-3,6-dimethoxy-2′,4′,6′-triisopropyl-1,1′-biphenyl (1.5 mg) was added at room temperature under a nitrogen atmosphere, and the mixture was stirred at 100° C. for 5 minutes. The reaction mixture was cooled to room temperature, and then (S)-tert-butyl (1-((5-(2-chloro-4-(propylamino)pyrimidin-5-yl)-4-pentyn-1-yl)amino)-1-oxopropan-2-yl)(methyl)carbamate (V1, 12.5 mg), 2-methyl-4-aminopyridine (4.0 mg) and cesium carbonate (19 mg) were added, and the mixture was stirred at 70° C. for 1 hour. The reaction mixture was cooled to room temperature, and then ethyl acetate was added to the reaction mixture. 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, 80 to 0% hexane in ethyl acetate) to obtain (S)-tert-butyl methyl(1-((5-(2-((2-methylpyridin-4-yl)amino)-4-(propylamino)pyrimidin-5-yl)-4-pentyn-1-yl)amino)-1-oxopropan-2-yl)carbamate (V2, 5.6 mg) as yellow oil.

1. temperatureThe reaction mixture was cooled to room temperature
2. stirringthe mixture was stirred at 70° C. for 1 hour
3. temperatureThe reaction mixture was cooled to room temperature
4. customThe insoluble matter was removed by filtration through Cerite
5. customthe solvent was evaporated under reduced pressure
6. customThe obtained residue was purified by silica gel column chromatography (eluent, 80 to 0% hexane in ethyl acetate)