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
- 150 °C
PROCEDURE
实验过程
To a mixture of 2-amino-N-tert-butyl-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide (92 mg, 253 mol), 3-bromo-5-(methylsulfonyl)pyridine (77.7 mg, 329 mol), xantphos (43.9 mg, 75.9 mol), Pd2(dba)3 (23.2 mg, 25.3 mol) and cesium carbonate (165 mg, 506 mol) in dioxane (2 mL) was heated in a microwave at 150° C. for 20 min. The mixture was cooled then filtered through a pad of celite. The filtrate was concentrated in vacuo then purified by chromatography (silica, 30-70% ethyl acetate in hexanes) to give N-tert-butyl-2-(5-(methylsulfonyl)pyridin-3-ylamino)-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide (125 mg, 241 mol, 95%) as a yellow gum. (EI/CI) m/z: 519.3 [M+H].
WORKUP
后处理
- temperatureThe mixture was cooled
- filtrationthen filtered through a pad of celite
- concentrationThe filtrate was concentrated in vacuo
- customthen purified by chromatography (silica, 30-70% ethyl acetate in hexanes)