Trimethylsilylacetylene → HCID 57477894, compound

Participants

Reaction Steps

To a solution of 3-(5-bromopyridin-3-yl)-3-[4-(7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]propanenitrile (from Example 429) (0.080 g, 0.00015 mol) in TEA (0.300 mL, 0.00215 mol) was degassed with nitrogen, and then copper(I) iodide (0.005 g, 0.00003 mol), (trimethylsilyl)acetylene, and bis(triphenylphosphine)palladium(II) chloride were added. The reaction mixture was sealed in a tube and stirred at room temperature overnight. The resulting black solution was partitioned between water (10 mL) and ethyl ether. The organic layer was washed with saturated sodium chloride, dried over magnesium sulfate and concentrated in vacuo to give 3-[4-(7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]-3-{5-[(trimethylsilyl)ethynyl]pyridin-3-yl}propanenitrile as a yellow oil (60 mg, 72.6), LCMS (M+1)+: 542).

Provenance & Evidence