To a degassed mixture of 4-((2-chloro-5-(2-methylbenzo[d]oxazol-6-yl)-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidin-4-yl)oxy)-1-methylcyclohexanol (1 equiv), 4-amino-N,3-dimethylbenzamide (1.1 equiv) and cesium carbonate (3 equiv) in 1,4-dioxane (0.17 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. 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 methanol) to afford the title compound 100% yield) as a red oil. MS (ESI) m/z 671.2 [M+1]+.
