1,4-Dioxane → 2-Chloro-5-(1-methyl-1H-pyrazol-4-yl)-4-((tetrahydro-2H-pyran-4-yl)oxy)-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidine

Participants

Reaction Conditions

Reaction Steps

To a degassed mixture of 2-chloro-5-iodo-4-((tetrahydro-2H-pyran-4-yl)oxy)-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidine (1 equiv), 1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (1.1 equiv) and potassium phosphate tribasic trihydrate (3 equiv) in a 10:1 mixture of 1,4-dioxane and water (0.09 M)) was added palladium 1,1-bis(diphenylphosphion)ferrocene dichloride (0.2 equiv). The mixture was stirred at 110° C. for 2 h. The suspension was cooled to room temperature and filtered. The filtrate was concentrated and the residue obtained was purified by silica gel chromatography (20% ethyl acetate in petroleum ether) to afford the title compound (88% yield). MS (ESI) m/z=464.1 [M+1]+.

Provenance & Evidence