Triethylamine → tert-Butyl [3-(2-chloro-5-fluorocarbonylpyrimidin-4-ylamino)propyl]-carbamate

Beteiligte Stoffe

Reaktionsschritte

To a suspension of 4.91 g (14.85 mmol) of the product prepared in step 11.1 in 75 mL of dichloromethane are added 2.07 g (14.85 mmol) of triethylamine and then 1.88 mL (22.28 mmol) of cyanuric fluoride. The mixture is stirred at room temperature for 2 hours and the solution is diluted with 100 mL of dichloromethane. The organic phase is washed three times with 100 mL of ice-cold aqueous NaHCO3, dried over MgSO4, filtered and concentrated under vacuum. 4.56 g of the expected product are obtained, and are used directly in the following step. Yield=98%.

Herkunft & Nachweise