Cesium carbonate → HCID 86726477, compound

Participants

Reaction Conditions

Reaction Steps

To a degassed mixture of 6-(2-chloro-4-(cyclopentyloxy)-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidin-5-yl)-2-methylbenzo[d]oxazole (1 equiv), 5-chloro-1-(2-methoxyethyl)-1H-pyrazol-4-amine (1.5 equiv) and cesium carbonate (3 equiv) in 1,4-dioxane (0.06 M) was added palladium acetate (0.1 equiv) and 2,2′-bis-diphenylphosphanyl-[1,1′]binaphthalenyl (0.2 equiv). The reaction was stirred at 100° C. for 2 h. Upon completion, the reaction mixture was cooled to room temperature, and concentrated. The residue was purified by silica gel chromatography (1-2% MeOH in DCM) to afford the desired product (60% yield, crude) as a yellow solid which was used in next step without further purification. MS (ESI) m/z 638.2 [M+H]+.

Provenance & Evidence