Cesium carbonate → HCID 90052315, compound

Participants

Reaction Conditions

Reaction Steps

To (S,E)-N-(1-((5-(2-chloro-4-(propylamino)pyrimidin-5-yl)-4-pentyn-1-yl)amino)-1-oxopropan-2-yl)-4-(dimethylamino)-N-methyl-2-butenamide (L4, 30 mg), 4-(2-aminoethyl)morpholine (18 μL), tris(dibenzylideneacetone)dipalladium(0) (6.1 mg), 4,5′-bis(diphenylphosphino)-9,9′-dimethylxanthene (7.7 mg) and cesium carbonate (65 mg), 1,4-dioxane (2 mL) was added at room temperature, the reaction vessel was sealed, and then the mixture was stirred at 150° C. for 30 minutes by using a microwave reaction system. The reaction mixture was cooled to room temperature, then the insoluble matter was removed by filtration, and the solvent was evaporated under reduced pressure. The obtained residue was purified by basic silica gel column chromatography (eluent, 95% ethyl acetate/5% methanol) to obtain oily (S,E)-4-(dimethylamino)-N-methyl-N-(1-((5-(2-((2-morpholinoethyl)amino)-4-(propylamino)pyrimidin-5-yl)-4-pentyn-1-yl)amino)-1-oxopropan-2-yl)-2-butenamide (12-15, 2.9 mg).

Provenance & Evidence