反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
CONDITIONS
反应条件
- 温度
- 100 °C
PROCEDURE
实验过程
6-Chloro-N-methyl-1-trityl-1H-pyrazolo[4,3-c]pyridin-3-amine (332 mg, 0.781 mmol), (R)-1-(1-(4-fluorophenyl)ethyl)urea (Intermediate 20C; 193 mg, 1.059 mmol), BrettPhos pre-catalyst (48.0 mg, 0.060 mmol), and cesium carbonate (759 mg, 2.330 mmol) were taken up in 1,4-dioxane (6 mL) in a 20 mL microwave vial. The vial was evacuated and back-filled with N2 (×3) and the reaction was stirred at 100° C. for 3 h. Room temperature was attained, the reaction mixture was filtered through Celite, eluting with MeOH, and the filtrate was concentrated in vacuo. Purification of the residue by flash chromatography (0-100% EtOAc-DCM) gave (R)-1-(1-(4-fluorophenyl)ethyl)-3-(3-(methylamino)-1-trityl-1H-pyrazolo[4,3-c]pyridin-6-yl)urea. MS ESI calc'd. For C35H31FN6O [M+1]+ 571. found 571.
WORKUP
后处理
- customThe vial was evacuated
- additionback-filled with N2 (×3)
- customRoom temperature
- filtrationthe reaction mixture was filtered through Celite
- washeluting with MeOH
- concentrationthe filtrate was concentrated in vacuo
- customPurification of the residue by flash chromatography (0-100% EtOAc-DCM)