1,8-Diazabicyclo(5.4.0)undec-7-ene → {1-[cis-3-Fluoropiperidin-4-yl]-3-[4-(7-{[2-(trimethylsilyl)ethoxy]methyl}-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]azetidin-3-yl}acetonitrile

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Reaction Steps

To a solution of tert-butyl cis-4-[3-(cyanomethylene)azetidin-1-yl]-3-fluoropiperidine-1-carboxylate (0.24 g, 0.81 mmol) and 4-(1H-pyrazol-4-yl)-7-{[2-(trimethylsilyl)ethoxy]methyl}-7H-pyrrolo[2,3-d]pyrimidine (0.31 g, 0.98 mmol) in acetonitrile (8 mL) was added 1,8-diazabicyclo[5.4.0]undec-7-ene (0.15 g, 0.98 mmol) by syringe. The resulting solution was stirred at room temperature for 6 hours and concentrated. Purification with combi-flash using 40-100% EtOAc/hexanew as eluent gave 0.30 g (61% yield) of the desired compound as a solid. LCMS found: 611.1 (M+1)+.

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