Cesium carbonate → N,N,3-Trimethyl-4-((5-(pyridin-4-yl)-4-((tetrahydro-2H-pyran-4-yl)amino)-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidin-2-yl)amino)benzamide

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To a degassed mixture of 2-chloro-5-(pyridin-4-yl)-N-(tetrahydro-2H-pyran-4-yl)-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine (1 equiv), 4-amino-N,N,3-trimethylbenzamide (1.2 equiv) and cesium carbonate (3 equiv) in 1,4-dioxane (0.2 M) was added palladium acetate (0.3 equiv) and 2,2′-bis-diphenylphosphanyl-[1,1′]binaphthalenyl (0.6 equiv). The reaction was stirred at 110° C. for 2 hours. After the reaction was complete, the reaction mixture was cooled to room temperature and concentrated. The residue was purified by silica gel chromatography (0-2% DCM in MeOH) to afford the desired product (35% yield) as a yellow solid. MS (ESI) m/z 602.3 [M+1]+.

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