Dimethylformamide → 4-methyl-3-[4-(1-[2-(trimethylsilyl)ethoxy]methyl-1H-pyrrolo[2,3-b]pyridin-4-yl)-1H-pyrazol-1-yl]benzonitrile

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To a mixture of 4-(1H-pyrazol-4-yl)-1-[2-(trimethylsilyl)ethoxy]methyl-1H-pyrrolo[2,3-b]-pyridine (0.050 g, 0.00016 mol) (see, Example 231, Step 1) and cesium carbonate (0.10 g, 0.00032 mol) in dry DMF (1.0 mL, 0.013 mol) was added 3-fluoro-4-methylbenzonitrile (0.043 g, 0.00032 mol). The reaction mixture was heated in sealed tube to 120° C. for 5.5 hours. The reaction was allowed to cool and partitioned between ethyl acetate and water. The organic layer was washed with water, brine, dried over magnesium sulfate, filtered, and concentrated to give 4-methyl-3-[4-(1-[2-(trimethylsilyl)ethoxy]methyl-1H-pyrrolo[2,3-b]pyridin-4-yl)-1H-pyrazol-1-yl]benzonitrile as a crude product, LC/MS (M+H)+: 430.

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